US Bridges

Lincoln ST over Mormon Slough

Fair

San Joaquin County, California · 0.1 MI N Church ST · Structure no. 29C0094

Built
1972
53 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
126 ft
5 main spans
Daily traffic
5,400
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lincoln ST over Mormon Slough is a concrete continuous slab carrying Lincoln ST over Mormon Slough 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 5,400 vehicles a day, roughly 5% of them trucks, projected to reach 7,079 by 2045. The structure is 126 ft (38.4 m) long and 77 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLincoln ST
CrossesMormon Slough
Location0.1 MI N Church ST
RouteCity Street 0
Coordinates37.94758, -121.29643
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span28 ft (8.5 m)
Deck width77 ft (23.5 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2015)
Projected traffic7,079 by 2045
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Lincoln ST over Mormon Slough built?

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

What condition is Lincoln ST over Mormon Slough 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 January 2025.

How much traffic does Lincoln ST over Mormon Slough carry?

About 5,400 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Lincoln ST over Mormon Slough?

The structure is 126 ft (38.4 m) long with a longest span of 28 ft (8.5 m) and a deck 77 ft wide.

Who owns Lincoln ST over Mormon Slough?

It is owned by the City or Municipal Highway Agency.