US Bridges

State Route 65 SB over South Ingram Slough

Fair

Placer County, California · 03-PLA-065-R13.01-LNCN · Structure no. 19 0188L

Built
2012
13 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
226 ft
2 main spans
Daily traffic
25,250
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 65 SB over South Ingram Slough is a prestressed concrete continuous box beam or girders - multiple carrying State Route 65 SB over South Ingram Slough in Placer County, California. It was built in 2012, so it is 13 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 25,250 vehicles a day, roughly 13% of them trucks, projected to reach 57,716 by 2047. The structure is 226 ft (68.8 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 65 SB
CrossesSouth Ingram Slough
Location03-PLA-065-R13.01-LNCN
RouteState Highway 65
Coordinates38.86616, -121.30331
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length226 ft (68.8 m)
Longest span112 ft (34 m)
Deck width57 ft (17.5 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,250 (2009)
Projected traffic57,716 by 2047
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 65 SB over South Ingram Slough built?

It was built in 2012, making it 13 years old in 2025.

What condition is State Route 65 SB over South Ingram 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 State Route 65 SB over South Ingram Slough carry?

About 25,250 vehicles per day (2009 count), of which roughly 13% are trucks.

How long is State Route 65 SB over South Ingram Slough?

The structure is 226 ft (68.8 m) long with a longest span of 112 ft (34 m) and a deck 57 ft wide.

Who owns State Route 65 SB over South Ingram Slough?

It is owned by the State Highway Agency.