US Bridges

Barber Ave over Corte Madera Creek

Fair

Marin County, California · 0.1 MI E of Francis Drake · Structure no. 27C0073

Built
1930
95 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
115 ft
4 main spans
Daily traffic
1,500
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Barber Ave over Corte Madera Creek is a concrete continuous tee beam carrying Barber Ave over Corte Madera Creek in Marin County, California. It was built in 1930, so it is 95 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,500 vehicles a day, roughly 3% of them trucks, projected to reach 1,836 by 2041. The structure is 115 ft (34.9 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBarber Ave
CrossesCorte Madera Creek
Location0.1 MI E of Francis Drake
RouteCity Street 0
CountyMarin County
StateCalifornia
Coordinates37.97271, -122.56118
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating16.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length115 ft (34.9 m)
Longest span40 ft (12.2 m)
Deck width36 ft (11.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2011)
Projected traffic1,836 by 2041
Trucks3%
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 Barber Ave over Corte Madera Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Barber Ave over Corte Madera Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Barber Ave over Corte Madera Creek carry?

About 1,500 vehicles per day (2011 count), of which roughly 3% are trucks.

How long is Barber Ave over Corte Madera Creek?

The structure is 115 ft (34.9 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns Barber Ave over Corte Madera Creek?

It is owned by the City or Municipal Highway Agency.