US Bridges

State Route 51 over Private Road

Fair

Sacramento County, California · 03-SAC-051-3.14-SAC · Structure no. 24 0133

Built
1954
71 years old, rebuilt 1968
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
180,000
2010 count
Owner
State
State Highway Agency

About this bridge

State Route 51 over Private Road is a concrete slab carrying State Route 51 over Private Road in Sacramento County, California. It was built in 1954 and reconstructed in 1968, so it is 71 years old, older 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 180,000 vehicles a day, roughly 6% of them trucks, projected to reach 233,995 by 2045. The structure is 39 ft (12 m) long and 158 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesState Route 51
CrossesPrivate Road
Location03-SAC-051-3.14-SAC
RouteState Highway 51
CountySacramento County
StateCalifornia
Coordinates38.59381, -121.44449
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (12 m)
Longest span36 ft (11 m)
Deck width158 ft (48.2 m)
Roadway width153 ft (46.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180,000 (2010)
Projected traffic233,995 by 2045
Trucks6%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 State Route 51 over Private Road built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1968.

What condition is State Route 51 over Private Road 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 November 2023.

How much traffic does State Route 51 over Private Road carry?

About 180,000 vehicles per day (2010 count), of which roughly 6% are trucks.

How long is State Route 51 over Private Road?

The structure is 39 ft (12 m) long with a longest span of 36 ft (11 m) and a deck 158 ft wide.

Who owns State Route 51 over Private Road?

It is owned by the State Highway Agency.