US Bridges

Hatch Road over State Route 99

Good

Stanislaus County, California · 10-STA-099-R13.26-CER · Structure no. 38 0081

Built
1962
63 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
225 ft
3 main spans
Daily traffic
16,800
2002 count
Owner
State
State Highway Agency

About this bridge

Hatch Road over State Route 99 is a concrete continuous box beam or girders - multiple carrying Hatch Road over State Route 99 in Stanislaus County, California. It was built in 1962, so it is 63 years old, older 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 16,800 vehicles a day, roughly 4% of them trucks, projected to reach 26,756 by 2043. The structure is 225 ft (68.6 m) long and 64 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHatch Road
CrossesState Route 99
Location10-STA-099-R13.26-CER
RouteCity Street 0
Coordinates37.60919, -120.97678
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating32.2 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length225 ft (68.6 m)
Longest span97 ft (29.6 m)
Deck width64 ft (19.6 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,800 (2002)
Projected traffic26,756 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hatch Road over State Route 99 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Hatch Road over State Route 99 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 March 2023.

How much traffic does Hatch Road over State Route 99 carry?

About 16,800 vehicles per day (2002 count), of which roughly 4% are trucks.

How long is Hatch Road over State Route 99?

The structure is 225 ft (68.6 m) long with a longest span of 97 ft (29.6 m) and a deck 64 ft wide.

Who owns Hatch Road over State Route 99?

It is owned by the State Highway Agency.