US Bridges

Whitworth Road over Garzas Creek

Good

Merced County, California · 0.1 MI S Taglio Road · Structure no. 39C0084

Built
1977
48 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
160
2015 count
Owner
County
County Highway Agency

About this bridge

Whitworth Road over Garzas Creek is a concrete slab carrying Whitworth Road over Garzas Creek in Merced County, California. It was built in 1977, so it is 48 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 160 vehicles a day, roughly 3% of them trucks, projected to reach 435 by 2041. The structure is 30 ft (9 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWhitworth Road
CrossesGarzas Creek
Location0.1 MI S Taglio Road
RouteCounty Highway 0
Coordinates37.2146, -121.03082
Functional classRural Minor Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating69.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9 m)
Longest span28 ft (8.5 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2015)
Projected traffic435 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Whitworth Road over Garzas Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Whitworth Road over Garzas Creek 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 February 2023.

How much traffic does Whitworth Road over Garzas Creek carry?

About 160 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is Whitworth Road over Garzas Creek?

The structure is 30 ft (9 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.

Who owns Whitworth Road over Garzas Creek?

It is owned by the County Highway Agency.