US Bridges

LA Goma ST over Ayo Corte Madera Del Pre

Good

Marin County, California · 300 Ft N of Miller Ave · Structure no. 27C0140

Built
1950
75 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
3,000
2004 count
Owner
City
City or Municipal Highway Agency

About this bridge

LA Goma ST over Ayo Corte Madera Del Pre is a concrete slab carrying LA Goma ST over Ayo Corte Madera Del Pre in Marin County, California. It was built in 1950, so it is 75 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,000 vehicles a day, roughly 5% of them trucks, projected to reach 4,362 by 2041. The structure is 26 ft (7.8 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA Goma ST
CrossesAyo Corte Madera Del Pre
Location300 Ft N of Miller Ave
RouteCity Street 0
Coordinates37.89799, -122.53619
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width47 ft (14.3 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2004)
Projected traffic4,362 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA Goma ST over Ayo Corte Madera Del Pre built?

It was built in 1950, making it 75 years old in 2025.

What condition is LA Goma ST over Ayo Corte Madera Del Pre in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does LA Goma ST over Ayo Corte Madera Del Pre carry?

About 3,000 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is LA Goma ST over Ayo Corte Madera Del Pre?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 47 ft wide.

Who owns LA Goma ST over Ayo Corte Madera Del Pre?

It is owned by the City or Municipal Highway Agency.