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Nearby Bridges in NBI 2021: 4


SH 93 ML over BOULDER CREEK (Route: 93)
Num:D-15-BCx
Open: no restriction [A]
Built: 2004, Reconstructed: N/A [0000]
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 62.8 m = 206.0 ft
Main Spans: 3 at 40.2 m = 131.9 ft
Approach Spans: 0
Skew: 9
Width, Roadway: 15.2 m = 49.9 ft (4 Lanes) and Out-To-Out: 24.4 m = 80.1 ft for a 15.2 m = 49.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Boulder [07850]: Boulder County [013], Colorado [08]
Owned by State Highway Agency [01], DOT District: 41
N. of Arapahoe Ave
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 58 metric ton = 63.8 tons (Load Factor(LF) [1])
Inventory: 34.8 metric ton = 38.3 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: June 1999 [699] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.1 km = 0.1 mi
Traffic
ADT: 27000 (2018) and Trucks: 4%
Future ADT: 29700 (In 2038 )
Arapahoe Avenue over Boulder Creek (Route: 0)
Num:BOLD-16-0.08-1Ax
Open: no restriction [A]
Built: 1988, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 27.1 m = 88.9 ft
Main Spans: 1 at 25.6 m = 84.0 ft
Approach Spans: 0
Skew: 40
Width, Roadway: 14 m = 45.9 ft (4 Lanes) and Out-To-Out: 18.5 m = 60.7 ft for a 14 m = 45.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Boulder [07850]: Boulder County [013], Colorado [08]
Owned by City or Municipal Highway Agency [04], DOT District: 41
0.08 Mi E of S. Broadway
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 69.5 metric ton = 76.5 tons (Load Factor(LF) [1])
Inventory: 45.3 metric ton = 49.8 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: February 1999 [299] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge with deck rehabilitation or replacement. [34]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 12844 (2016) and Trucks: 6%
Future ADT: 21706 (In 2036 )
9th Street over Boulder Creek (Route: 0)
Num:BOLD-02-0.08-01x
Open: no restriction [A]
Built: 1978, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box Beam or girders - Single or Spread [06]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 44.2 m = 145.0 ft
Main Spans: 2 at 21.1 m = 69.2 ft
Approach Spans: 0
Skew: 20
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 15.8 m = 51.8 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Boulder [07850]: Boulder County [013], Colorado [08]
Owned by City or Municipal Highway Agency [04], DOT District: 41
0.08 Mi N of Arapahoe Ave
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 36.3 metric ton = 39.9 tons ()
Inventory: 32.7 metric ton = 36.0 tons ()
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: February 1999 [299] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 10433 (2016) and Trucks: 6%
Future ADT: 17632 (In 2036 )
17th Street over Boulder Creek (Route: 0)
Num:BOLD-03-0.36-1Ax
Open: no restriction [A]
Built: 1985, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 31.9 m = 104.7 ft
Main Spans: 1 at 30.2 m = 99.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 17 m = 55.8 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Boulder [07850]: Boulder County [013], Colorado [08]
Owned by City or Municipal Highway Agency [04], DOT District: 41
0.4 Mi So of Canyon Blvd.
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 59.9 metric ton = 65.9 tons (Load Factor(LF) [1])
Inventory: 39 metric ton = 42.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: February 1999 [299] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 10805 (2016) and Trucks: 4%
Future ADT: 18261 (In 2036 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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