US Bridges

State Route 41 NB over San Joaquin River Ovrflo

Good

Madera County, California · 06-MAD-041-0.13 · Structure no. 41 0084R

Built
1999
26 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
146 ft
1 main span
Daily traffic
28,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 41 NB over San Joaquin River Ovrflo is a prestressed concrete box beam or girders - multiple carrying State Route 41 NB over San Joaquin River Ovrflo in Madera County, California. It was built in 1999, so it is 26 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 28,000 vehicles a day, roughly 6% of them trucks, projected to reach 36,426 by 2041. The structure is 146 ft (44.5 m) long and 59 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesState Route 41 NB
CrossesSan Joaquin River Ovrflo
Location06-MAD-041-0.13
RouteState Highway 41
Coordinates36.87764, -119.79244
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length146 ft (44.5 m)
Longest span143 ft (43.6 m)
Deck width59 ft (18.1 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,000 (2009)
Projected traffic36,426 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 41 NB over San Joaquin River Ovrflo built?

It was built in 1999, making it 26 years old in 2025.

What condition is State Route 41 NB over San Joaquin River Ovrflo in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does State Route 41 NB over San Joaquin River Ovrflo carry?

About 28,000 vehicles per day (2009 count), of which roughly 6% are trucks.

How long is State Route 41 NB over San Joaquin River Ovrflo?

The structure is 146 ft (44.5 m) long with a longest span of 143 ft (43.6 m) and a deck 59 ft wide.

Who owns State Route 41 NB over San Joaquin River Ovrflo?

It is owned by the State Highway Agency.