US Bridges

State Route 99 over Log Cabin Creek

Good

Sacramento County, California · 03-SAC-099-2.36 · Structure no. 24 0029

Built
1958
67 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
58,000
2002 count
Owner
State
State Highway Agency

About this bridge

State Route 99 over Log Cabin Creek is a concrete continuous culvert carrying State Route 99 over Log Cabin Creek in Sacramento County, California. It was built in 1958, so it is 67 years old, older 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 58,000 vehicles a day, roughly 18% of them trucks, projected to reach 97,912 by 2042. The structure is 20 ft (6.1 m) long.

CarriesState Route 99
CrossesLog Cabin Creek
Location03-SAC-099-2.36
RouteState Highway 99
Coordinates38.27545, -121.30402
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,000 (2002)
Projected traffic97,912 by 2042
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 99 over Log Cabin Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is State Route 99 over Log Cabin Creek 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 January 2024.

How much traffic does State Route 99 over Log Cabin Creek carry?

About 58,000 vehicles per day (2002 count), of which roughly 18% are trucks.

How long is State Route 99 over Log Cabin Creek?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m).

Who owns State Route 99 over Log Cabin Creek?

It is owned by the State Highway Agency.