US Bridges

Fine Road over Mormon Slough

Good

San Joaquin County, California · 0.2 MI South of SH 26 · Structure no. 29C0110

Built
1972
53 years old
Condition
Good
inspected February 2025
Type
Tee Beam
Concrete Continuous
Length
208 ft
3 main spans
Daily traffic
801
2019 count
Owner
County
County Highway Agency

About this bridge

Fine Road over Mormon Slough is a concrete continuous tee beam carrying Fine Road 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 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 801 vehicles a day, roughly 20% of them trucks, projected to reach 723 by 2047. The structure is 208 ft (63.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFine Road
CrossesMormon Slough
Location0.2 MI South of SH 26
RouteCounty Highway 0
Coordinates38.02831, -121.05003
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span68 ft (20.7 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic801 (2019)
Projected traffic723 by 2047
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Fine Road over Mormon Slough built?

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

What condition is Fine Road over Mormon Slough 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 February 2025.

How much traffic does Fine Road over Mormon Slough carry?

About 801 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is Fine Road over Mormon Slough?

The structure is 208 ft (63.4 m) long with a longest span of 68 ft (20.7 m) and a deck 32 ft wide.

Who owns Fine Road over Mormon Slough?

It is owned by the County Highway Agency.