US Bridges

State Route 99 over Little Dry Creek

Fair

Madera County, California · 06-MAD-099-5.88 · Structure no. 41 0035

Built
1912
113 years old, rebuilt 2000
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
67,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 99 over Little Dry Creek is a concrete continuous culvert carrying State Route 99 over Little Dry Creek in Madera County, California. It was built in 1912 and reconstructed in 2000, so it is 113 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 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 67,000 vehicles a day, roughly 19% of them trucks, projected to reach 108,903 by 2041. The structure is 27 ft (8.2 m) long and 118 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesState Route 99
CrossesLittle Dry Creek
Location06-MAD-099-5.88
RouteState Highway 99
Coordinates36.90653, -120.00282
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width118 ft (36 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,000 (2009)
Projected traffic108,903 by 2041
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 99 over Little Dry Creek built?

It was built in 1912, making it 113 years old in 2025. It was reconstructed in 2000.

What condition is State Route 99 over Little Dry 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 June 2023.

How much traffic does State Route 99 over Little Dry Creek carry?

About 67,000 vehicles per day (2009 count), of which roughly 19% are trucks.

How long is State Route 99 over Little Dry Creek?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 118 ft wide.

Who owns State Route 99 over Little Dry Creek?

It is owned by the State Highway Agency.