US Bridges

Milham Avenue over Interstate 5

Fair

Kings County, California · 06-KIN-005-19.05 · Structure no. 45 0071

Built
1969
56 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
460 ft
3 main spans
Daily traffic
100
2004 count
Owner
State
State Highway Agency

About this bridge

Milham Avenue over Interstate 5 is a prestressed concrete continuous box beam or girders - multiple carrying Milham Avenue over Interstate 5 in Kings County, California. It was built in 1969, so it is 56 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 100 vehicles a day, roughly 20% of them trucks, projected to reach 163 by 2046. The structure is 460 ft (140.2 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMilham Avenue
CrossesInterstate 5
Location06-KIN-005-19.05
RouteCounty Highway 0
Coordinates36.00861, -119.98946
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 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 alignment7: Better than present minimum criteria
Operating rating56.1 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length460 ft (140.2 m)
Longest span168 ft (51.2 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2004)
Projected traffic163 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 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 Milham Avenue over Interstate 5 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Milham Avenue over Interstate 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 December 2024.

How much traffic does Milham Avenue over Interstate 5 carry?

About 100 vehicles per day (2004 count), of which roughly 20% are trucks.

How long is Milham Avenue over Interstate 5?

The structure is 460 ft (140.2 m) long with a longest span of 168 ft (51.2 m) and a deck 34 ft wide.

Who owns Milham Avenue over Interstate 5?

It is owned by the State Highway Agency.