US Bridges

S Gateway DR over SR 99

Poor

Madera County, California · 06-MAD-099-9.74 · Structure no. 41 0046K

Built
1958
67 years old, rebuilt 2008
Condition
Poor
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
226 ft
2 main spans
Daily traffic
4,380
2010 count
Owner
State
State Highway Agency

About this bridge

S Gateway DR over SR 99 is a concrete continuous box beam or girders - multiple carrying S Gateway DR over SR 99 in Madera County, California. It was built in 1958 and reconstructed in 2008, so it is 67 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,380 vehicles a day, roughly 2% of them trucks, projected to reach 5,752 by 2043. The structure is 226 ft (68.9 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS Gateway DR
CrossesSR 99
Location06-MAD-099-9.74
RouteCity Street 0
CountyMadera County
StateCalifornia
Coordinates36.94864, -120.04833
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.2 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length226 ft (68.9 m)
Longest span72 ft (21.9 m)
Deck width40 ft (12.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,380 (2010)
Projected traffic5,752 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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 S Gateway DR over SR 99 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2008.

What condition is S Gateway DR over SR 99 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does S Gateway DR over SR 99 carry?

About 4,380 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is S Gateway DR over SR 99?

The structure is 226 ft (68.9 m) long with a longest span of 72 ft (21.9 m) and a deck 40 ft wide.

Who owns S Gateway DR over SR 99?

It is owned by the State Highway Agency.