US Bridges

Doty Road over Hat Creek

Good

Shasta County, California · 0.2 MI Due East S.R. 89 · Structure no. 06C0267

Built
1971
54 years old
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
200
2015 count
Owner
County
County Highway Agency

About this bridge

Doty Road over Hat Creek is a prestressed concrete slab carrying Doty Road over Hat Creek in Shasta County, California. It was built in 1971, so it is 54 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 319 by 2041. The structure is 45 ft (13.7 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesDoty Road
CrossesHat Creek
Location0.2 MI Due East S.R. 89
RouteCounty Highway 0
Coordinates40.83055, -121.50896
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 48 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 rating77.5 US tons
Inventory rating46.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span43 ft (13 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2015)
Projected traffic319 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Doty Road over Hat Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Doty Road over Hat 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 May 2023.

How much traffic does Doty Road over Hat Creek carry?

About 200 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Doty Road over Hat Creek?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13 m) and a deck 29 ft wide.

Who owns Doty Road over Hat Creek?

It is owned by the County Highway Agency.