US Bridges

Blewett Road over Interstate Route 5

Fair

San Joaquin County, California · 10-SJ-005-2.46 · Structure no. 29 0243

Built
1971
54 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
206 ft
2 main spans
Daily traffic
74
1998 count
Owner
State
State Highway Agency

About this bridge

Blewett Road over Interstate Route 5 is a concrete continuous box beam or girders - multiple carrying Blewett Road over Interstate Route 5 in San Joaquin County, California. It was built in 1971, so it is 54 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 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 74 vehicles a day, roughly 4% of them trucks, projected to reach 232 by 2046. The structure is 206 ft (62.8 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBlewett Road
CrossesInterstate Route 5
Location10-SJ-005-2.46
RouteCounty Highway 0
Coordinates37.62344, -121.34333
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating50.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length206 ft (62.8 m)
Longest span102 ft (31.1 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74 (1998)
Projected traffic232 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 Blewett Road over Interstate Route 5 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Blewett Road over Interstate Route 5 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 September 2024.

How much traffic does Blewett Road over Interstate Route 5 carry?

About 74 vehicles per day (1998 count), of which roughly 4% are trucks.

How long is Blewett Road over Interstate Route 5?

The structure is 206 ft (62.8 m) long with a longest span of 102 ft (31.1 m) and a deck 34 ft wide.

Who owns Blewett Road over Interstate Route 5?

It is owned by the State Highway Agency.