US Bridges

State Route 99 NB over Cottonwood Creek

Fair

Madera County, California · 06-MAD-099-R7.28 · Structure no. 41 0065R

Built
1967
58 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
240 ft
8 main spans
Daily traffic
32,500
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 99 NB over Cottonwood Creek is a concrete continuous tee beam carrying State Route 99 NB over Cottonwood Creek in Madera County, California. It was built in 1967, so it is 58 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 32,500 vehicles a day, projected to reach 69,522 by 2043. The structure is 240 ft (73.2 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesState Route 99 NB
CrossesCottonwood Creek
Location06-MAD-099-R7.28
RouteState Highway 99
CountyMadera County
StateCalifornia
Coordinates36.92196, -120.01957
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span33 ft (10.1 m)
Deck width40 ft (12.1 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,500 (2009)
Projected traffic69,522 by 2043
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 NB over Cottonwood Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is State Route 99 NB over Cottonwood Creek 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 State Route 99 NB over Cottonwood Creek carry?

About 32,500 vehicles per day (2009 count).

How long is State Route 99 NB over Cottonwood Creek?

The structure is 240 ft (73.2 m) long with a longest span of 33 ft (10.1 m) and a deck 40 ft wide.

Who owns State Route 99 NB over Cottonwood Creek?

It is owned by the State Highway Agency.