US Bridges

SR 99 & LA Mancha over Florin Creek

Good

Sacramento County, California · 03-SAC-099-18.64 · Structure no. 24 0181

Built
1961
64 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
161,000
2019 count
Owner
State
State Highway Agency

About this bridge

SR 99 & LA Mancha over Florin Creek is a concrete continuous culvert carrying SR 99 & LA Mancha over Florin Creek in Sacramento County, California. It was built in 1961, so it is 64 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 161,000 vehicles a day, roughly 6% of them trucks, projected to reach 243,609 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesSR 99 & LA Mancha
CrossesFlorin Creek
Location03-SAC-099-18.64
RouteState Highway 99
Coordinates38.48533, -121.43431
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than 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 spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic161,000 (2019)
Projected traffic243,609 by 2042
Trucks6%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 99 & LA Mancha over Florin Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR 99 & LA Mancha over Florin 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 February 2024.

How much traffic does SR 99 & LA Mancha over Florin Creek carry?

About 161,000 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR 99 & LA Mancha over Florin Creek?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m).

Who owns SR 99 & LA Mancha over Florin Creek?

It is owned by the State Highway Agency.