US Bridges

Avenue 8 over SR 99 & UP RR

Fair

Madera County, California · 06-MAD-099-2.23 · Structure no. 41 0060

Built
1964
61 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
390 ft
5 main spans
Daily traffic
330
2011 count
Owner
State
State Highway Agency

About this bridge

Avenue 8 over SR 99 & UP RR is a concrete continuous box beam or girders - multiple carrying Avenue 8 over SR 99 & UP RR in Madera County, California. It was built in 1964, so it is 61 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 330 vehicles a day, roughly 1% of them trucks, projected to reach 1,080 by 2041. The structure is 390 ft (118.9 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesAvenue 8
CrossesSR 99 & UP RR
Location06-MAD-099-2.23
RouteCounty Highway 0
CountyMadera County
StateCalifornia
Coordinates36.86576, -119.9613
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length390 ft (118.9 m)
Longest span94 ft (28.7 m)
Deck width39 ft (12 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2011)
Projected traffic1,080 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed3.7 mi (6 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 Avenue 8 over SR 99 & UP RR built?

It was built in 1964, making it 61 years old in 2025.

What condition is Avenue 8 over SR 99 & UP RR 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 June 2023.

How much traffic does Avenue 8 over SR 99 & UP RR carry?

About 330 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Avenue 8 over SR 99 & UP RR?

The structure is 390 ft (118.9 m) long with a longest span of 94 ft (28.7 m) and a deck 39 ft wide.

Who owns Avenue 8 over SR 99 & UP RR?

It is owned by the State Highway Agency.