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Nearby Bridges in NBI 2021: 3


MOUNTAIN HAWK WAY over SKY HAWK CREEK (Route: 0)
Num: 20C0526x
Open: no restriction [A]
Built: 1995, 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): Concrete [1] Arch - Deck [11]
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: 11 m = 36.1 ft
Main Spans: 1 at 11 m = 36.1 ft
Approach Spans: 0
Skew: 4
Width, Roadway: 17 m = 55.8 ft (4 Lanes) and Out-To-Out: 24.9 m = 81.7 ft for a 17 m = 55.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Santa Rosa [70098]: Sonoma County [097], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
0.2 MI N/O SR 12
Condition
Deck: Not Applicable [N]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: August 2018 [0818] and Frequency: 48
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 3320 (2011) and Trucks: 2%
Future ADT: 4150 (In 2035 )
GREAT HERON DRIVE over SKY HAWK CREEK (Route: 0)
Num: 20C0527x
Open: no restriction [A]
Built: 1995, 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): Concrete [1] Arch - Deck [11]
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: 10 m = 32.8 ft
Main Spans: 1 at 10 m = 32.8 ft
Approach Spans: 0
Skew: 5
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Santa Rosa [70098]: Sonoma County [097], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
INTRSX W/ MTN HAWK WAY
Condition
Deck: Not Applicable [N]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 54.1 metric ton = 59.5 tons (Unknown [A])
Inventory: 32.4 metric ton = 35.6 tons (Unknown [A])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: August 2020 [0820] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 900 (2010) and Trucks: 2%
Future ADT: 1886 (In 2040 )
MOUNTAIN HAWK WAY over SKY HAWK CREEK (Route: 0)
Num: 20C0555x
Open: no restriction [A]
Built: 1995, Reconstructed: N/A [0000]
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 [1] Arch - Deck [11]
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: 26 m = 85.3 ft
Main Spans: 1 at 11 m = 36.1 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 13.3 m = 43.6 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Santa Rosa [70098]: Sonoma County [097], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
E OF SAN RAMON WAY
Condition
Deck: Not Applicable [N]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design:
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: Meets minimum tolerable limits to be left in place as is [4]
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: 48
Future Work
Work Needed:
Bridge Detour: 0.1 km = 0.1 mi
Traffic
ADT: 3320 (2016) and Trucks: 3%
Future ADT: 4150 (In 2038 )

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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