US Bridges

Ave 18 1/2 over Dry Creek

Fair

Madera County, California · 0.1 MI W RD 24 · Structure no. 41C0131

Built
1971
54 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
58 ft
2 main spans
Daily traffic
596
2020 count
Owner
County
County Highway Agency

About this bridge

Ave 18 1/2 over Dry Creek is a concrete continuous slab carrying Ave 18 1/2 over Dry Creek in Madera 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 596 vehicles a day, roughly 10% of them trucks, projected to reach 1,012 by 2044. The structure is 58 ft (17.7 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesAve 18 1/2
CrossesDry Creek
Location0.1 MI W RD 24
RouteCounty Highway 0
CountyMadera County
StateCalifornia
Coordinates37.01819, -120.11197
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length58 ft (17.7 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic596 (2020)
Projected traffic1,012 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Ave 18 1/2 over Dry Creek built?

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

What condition is Ave 18 1/2 over 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 March 2024.

How much traffic does Ave 18 1/2 over Dry Creek carry?

About 596 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Ave 18 1/2 over Dry Creek?

The structure is 58 ft (17.7 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns Ave 18 1/2 over Dry Creek?

It is owned by the County Highway Agency.