US Bridges

K Street over State Route 99 & Ramp

Fair

Stanislaus County, California · 10-STA-099-R16.03-MOD · Structure no. 38 0091

Built
1963
62 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
254 ft
4 main spans
Daily traffic
5,450
1998 count
Owner
State
State Highway Agency

About this bridge

K Street over State Route 99 & Ramp is a concrete continuous box beam or girders - multiple carrying K Street over State Route 99 & Ramp in Stanislaus County, California. It was built in 1963, so it is 62 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 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 5,450 vehicles a day, roughly 1% of them trucks, projected to reach 10,306 by 2043. The structure is 254 ft (77.4 m) long and 66 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesK Street
CrossesState Route 99 & Ramp
Location10-STA-099-R16.03-MOD
RouteCity Street 0
Coordinates37.63793, -121.00598
Functional classUrban Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating35.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length254 ft (77.4 m)
Longest span81 ft (24.7 m)
Deck width66 ft (20.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,450 (1998)
Projected traffic10,306 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 K Street over State Route 99 & Ramp built?

It was built in 1963, making it 62 years old in 2025.

What condition is K Street over State Route 99 & Ramp 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 March 2023.

How much traffic does K Street over State Route 99 & Ramp carry?

About 5,450 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is K Street over State Route 99 & Ramp?

The structure is 254 ft (77.4 m) long with a longest span of 81 ft (24.7 m) and a deck 66 ft wide.

Who owns K Street over State Route 99 & Ramp?

It is owned by the State Highway Agency.