US Bridges

W Fourth ST over SR 99

Good

Madera County, California · 06-MAD-099-11.01-MAD · Structure no. 41 0050

Built
1958
67 years old, rebuilt 2012
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
184 ft
2 main spans
Daily traffic
9,150
1998 count
Owner
State
State Highway Agency

About this bridge

W Fourth ST over SR 99 is a concrete continuous box beam or girders - multiple carrying W Fourth ST over SR 99 in Madera County, California. It was built in 1958 and reconstructed in 2012, so it is 67 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 9,150 vehicles a day, roughly 5% of them trucks, projected to reach 14,557 by 2043. The structure is 184 ft (56.1 m) long and 92 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesW Fourth ST
CrossesSR 99
Location06-MAD-099-11.01-MAD
RouteCity Street 0Z768
Coordinates36.96126, -120.06503
Functional classUrban Other Principal Arterial

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.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+8 approach)
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span55 ft (16.8 m)
Deck width92 ft (28 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,150 (1998)
Projected traffic14,557 by 2043
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was W Fourth ST over SR 99 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2012.

What condition is W Fourth ST over SR 99 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 June 2023.

How much traffic does W Fourth ST over SR 99 carry?

About 9,150 vehicles per day (1998 count), of which roughly 5% are trucks.

How long is W Fourth ST over SR 99?

The structure is 184 ft (56.1 m) long with a longest span of 55 ft (16.8 m) and a deck 92 ft wide.

Who owns W Fourth ST over SR 99?

It is owned by the State Highway Agency.