ALEXANDER AVE over ABANDONED NWP RR ROW (Route: 0)
Num: 27C0150x
Posted for load [P]
Built: 1925, 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): Concrete continuous [2] Arch - Thru [12]
Approach Span(s): Concrete continuous [2] Slab [01]
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: 50 m = 164.1 ft
Main Spans: 1 at 11.7 m = 38.4 ft
Approach Spans: 6
Skew: 0
Width, Roadway: 6.2 m = 20.3 ft (2 Lanes) and Out-To-Out: 8.8 m = 28.9 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
Larkspur [40438]: Marin County [041], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
0.1 MI E OF MAGNOLIA AVE

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design:
Operating: 25.3 metric ton = 27.8 tons ()
Inventory: 15.2 metric ton = 16.7 tons ()

Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 1999 [799] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 1570 (2009) and Trucks: 2%
Future ADT: 3268 (In 2041 )

MEADWOOD DR over BRANCH CORTE MADERA CRK (Route: 0)
Num: 27C0068x
Open: no restriction [A]
Built: 1974, 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 [1] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 12.4 m = 40.7 ft
Main Spans: 1 at 11.6 m = 38.1 ft
Approach Spans: 0
Skew: 3
Width, Roadway: 10.9 m = 35.8 ft (2 Lanes) and Out-To-Out: 14.6 m = 47.9 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
Larkspur [40438]: Marin County [041], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
IN LARKSPUR

Condition
Deck: Good [7]
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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
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 2017 [0717] and Frequency: 48

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 3000 (1978) and Trucks: 2%
Future ADT: 3466 (In 2035 )