US Bridges

State Route 4 over Madison Street

Fair

San Joaquin County, California · 10-SJ-004-R16.47-STKN · Structure no. 29 0239L

Built
1972
53 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
148 ft
1 main span
Daily traffic
15,500
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 4 over Madison Street is a prestressed concrete box beam or girders - multiple carrying State Route 4 over Madison Street in San Joaquin County, California. It was built in 1972, so it is 53 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 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 15,500 vehicles a day, roughly 11% of them trucks, projected to reach 38,636 by 2041. The structure is 148 ft (45.1 m) long and 53 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesState Route 4
CrossesMadison Street
Location10-SJ-004-R16.47-STKN
RouteState Highway 4
CountySan Joaquin County
StateCalifornia
Coordinates37.94961, -121.29333
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 rating46.7 US tons
Inventory rating30 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length148 ft (45.1 m)
Longest span145 ft (44.2 m)
Deck width53 ft (16.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2009)
Projected traffic38,636 by 2041
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 4 over Madison Street built?

It was built in 1972, making it 53 years old in 2025.

What condition is State Route 4 over Madison Street 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 4 over Madison Street carry?

About 15,500 vehicles per day (2009 count), of which roughly 11% are trucks.

How long is State Route 4 over Madison Street?

The structure is 148 ft (45.1 m) long with a longest span of 145 ft (44.2 m) and a deck 53 ft wide.

Who owns State Route 4 over Madison Street?

It is owned by the State Highway Agency.