DIABLO ROAD over SAN RAMON CREEK (Route: 0)
Num: 28C0200x
Open: no restriction [A]
Built: 1966, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 34 m = 111.6 ft
Main Spans: 3 at 19.5 m = 64.0 ft
Approach Spans: 0
Skew: 20
Width, Roadway: 19.5 m = 64.0 ft (6 Lanes) and Out-To-Out: 23.2 m = 76.1 ft for a 19.5 m = 64.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Danville [17988]: Contra Costa County [013], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
0.2 MI WEST OF I-680

Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 39.5 metric ton = 43.5 tons (Load Factor(LF) [1])
Inventory: 23.7 metric ton = 26.1 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: June 2020 [0620] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 21350 (2012) and Trucks: 15%
Future ADT: 21735 (In 2040 )

WEST EL PINTADO RD over GREEN VALLEY CREEK (Route: 0)
Num: 28C0393x
Open: no restriction [A]
Built: 1970, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]

Bridge Dimensions
Length: 8.8 m = 28.9 ft
Main Spans: 1 at 7.6 m = 24.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 0 m = 0.0 ft (2 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Danville [17988]: Contra Costa County [013], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
300 FT N DIABLO RD

Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design:
Operating: 40.5 metric ton = 44.6 tons ()
Inventory: 24.3 metric ton = 26.7 tons ()

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: N/A [N]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 3322 (2007) and Trucks: 2%
Future ADT: 1957 (In 2040 )

INTERSTATE 680 over GREEN VALLEY CREEK (Route: 680)
Num: 28 0270x
Open: no restriction [A]
Built: 1964, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]

Bridge Dimensions
Length: 7.6 m = 24.9 ft
Main Spans: 1 at 6.1 m = 20.0 ft
Approach Spans: 0
Skew: 2
Width, Roadway: 0 m = 0.0 ft (10 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 34.7 m = 113.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Contra Costa County [013], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-CC-680-R7.64

Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design: MS 18 / HS 20 [5]
Operating: 54.1 metric ton = 59.5 tons ()
Inventory: 32.4 metric ton = 35.6 tons ()

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: N/A [N]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 2018 [0718] and Frequency: 48

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 190100 (2017) and Trucks: 6%
Future ADT: 247100 (In 2038 )

INTERSTATE 680 over DIABLO ROAD (Route: 680)
Num: 28 0198x
Open: no restriction [A]
Built: 1964, Reconstructed: 1994
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Bridge Dimensions
Length: 44.8 m = 147.0 ft
Main Spans: 3 at 26.5 m = 86.9 ft
Approach Spans: 0
Skew: 16
Width, Roadway: 44.2 m = 145.0 ft (9 Lanes) and Out-To-Out: 45.4 m = 149.0 ft for a 44.5 m = 146.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Danville [17988]: Contra Costa County [013], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-CC-680-R7.55-DNVL

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 36 metric ton = 39.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 21.7 metric ton = 23.9 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 192200 (2017) and Trucks: 6%
Future ADT: 250000 (In 2038 )

DIABLO RD-S680 ON over SAN RAMON CREEK (Route: 680)
Num: 28 0197Kx
Open: no restriction [A]
Built: 1975, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 62.2 m = 204.1 ft
Main Spans: 3 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 7.1 m = 23.3 ft (1 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 7.1 m = 23.3 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Contra Costa County [013], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-CC-680-R7.43

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 40.5 metric ton = 44.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 30.8 metric ton = 33.9 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 4750 (2009) and Trucks: 6%
Future ADT: 7432 (In 2037 )

LA GONDA WAY over SAN RAMON CREEK (Route: 0)
Num: 28C0335x
Open: no restriction [A]
Built: 1950, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 33.8 m = 110.9 ft
Main Spans: 3 at 12.2 m = 40.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (2 Lanes) and Out-To-Out: 8.5 m = 27.9 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Danville [17988]: Contra Costa County [013], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
AT DANVILLE BLVD

Condition
Deck: Poor [4]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 70.3 metric ton = 77.3 tons (Load Factor(LF) [1])
Inventory: 42.1 metric ton = 46.3 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 2800 (2004) and Trucks: 1%
Future ADT: 10977 (In 2040 )

INTERSTATE 680 over SAN RAMON CREEK (Route: 680)
Num: 28 0197x
Open: no restriction [A]
Built: 1964, Reconstructed: 1994
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Bridge Dimensions
Length: 63.6 m = 208.7 ft
Main Spans: 3 at 24.7 m = 81.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 40.8 m = 133.9 ft (8 Lanes) and Out-To-Out: 42.1 m = 138.1 ft for a 42.7 m = 140.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Danville [17988]: Contra Costa County [013], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-CC-680-R7.43-DNVL

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 31.1 metric ton = 34.2 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 24 metric ton = 26.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 192200 (2017) and Trucks: 6%
Future ADT: 250000 (In 2038 )

N680-DIABLO RD OFF over SAN RAMON CREEK (Route: 680)
Num: 28 0197Sx
Open: no restriction [A]
Built: 1975, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 170.1 m = 558.1 ft
Main Spans: 7 at 30.5 m = 100.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 7.2 m = 23.6 ft (1 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 7.2 m = 23.6 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Danville [17988]: Contra Costa County [013], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-CC-680-R7.35-DNVL

Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 99.8 metric ton = 109.8 tons (Load Factor(LF) [1])
Inventory: 66.4 metric ton = 73.0 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 4650 (1998) and Trucks: 6%
Future ADT: 6132 (In 2040 )

INTERSTATE 680 over EL CERRO BOULEVARD (Route: 680)
Num: 28 0199x
Open: no restriction [A]
Built: 1964, Reconstructed: 1994
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 50.9 m = 167.0 ft
Main Spans: 3 at 26.5 m = 86.9 ft
Approach Spans: 0
Skew: 13
Width, Roadway: 41.5 m = 136.2 ft (8 Lanes) and Out-To-Out: 42.7 m = 140.1 ft for a 42.7 m = 140.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Danville [17988]: Contra Costa County [013], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-CC-680-R8.18-DNVL

Condition
Deck: Poor [4]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 54.1 metric ton = 59.5 tons (Unknown [A])
Inventory: 32.4 metric ton = 35.6 tons (Unknown [A])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 190100 (2017) and Trucks: 6%
Future ADT: 247100 (In 2038 )