US Bridges

Old Baldwin Road over Happy Valley Drain

Fair

Ventura County, California · .01 MI W/O SR 150 · Structure no. 52C0087

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

Old Baldwin Road over Happy Valley Drain is a concrete slab carrying Old Baldwin Road over Happy Valley Drain in Ventura County, California. It was built in 1971, so it is 54 years old, younger 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 6 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 100 vehicles a day, projected to reach 205 by 2046. The structure is 25 ft (7.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOld Baldwin Road
CrossesHappy Valley Drain
Location.01 MI W/O SR 150
RouteCounty Highway 0
Coordinates34.4289, -119.29488
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (6.9 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic205 by 2046
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Old Baldwin Road over Happy Valley Drain built?

It was built in 1971, making it 54 years old in 2025.

What condition is Old Baldwin Road over Happy Valley Drain 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 August 2024.

How much traffic does Old Baldwin Road over Happy Valley Drain carry?

About 100 vehicles per day (2022 count).

How long is Old Baldwin Road over Happy Valley Drain?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (6.9 m) and a deck 42 ft wide.

Who owns Old Baldwin Road over Happy Valley Drain?

It is owned by the County Highway Agency.