US Bridges

State Route 99 SB over Cross Canal

Fair

Sutter County, California · 03-SUT-099-5.92 · Structure no. 18 0017L

Built
1949
76 years old, rebuilt 1975
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
623 ft
28 main spans
Daily traffic
18,750
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 99 SB over Cross Canal is a concrete continuous slab carrying State Route 99 SB over Cross Canal in Sutter County, California. It was built in 1949 and reconstructed in 1975, so it is 76 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 18,750 vehicles a day, roughly 9% of them trucks, projected to reach 42,337 by 2044. The structure is 623 ft (189.9 m) long and 44 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesState Route 99 SB
CrossesCross Canal
Location03-SUT-099-5.92
RouteState Highway 99
Coordinates38.82075, -121.54381
Functional classRural Principal Arterial - Other

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans28
Design loadHS 20
Structure length623 ft (189.9 m)
Longest span22 ft (6.7 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,750 (2019)
Projected traffic42,337 by 2044
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 State Route 99 SB over Cross Canal built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1975.

What condition is State Route 99 SB over Cross Canal 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 May 2024.

How much traffic does State Route 99 SB over Cross Canal carry?

About 18,750 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is State Route 99 SB over Cross Canal?

The structure is 623 ft (189.9 m) long with a longest span of 22 ft (6.7 m) and a deck 44 ft wide.

Who owns State Route 99 SB over Cross Canal?

It is owned by the State Highway Agency.