US Bridges

Nelson Creek RD over Nelson Creek

Good

Shasta County, California · 0.4 MI E Big Bend RD · Structure no. 06C0237

Built
1986
39 years old
Condition
Good
inspected April 2021
Type
Slab
Prestressed Concrete
Length
96 ft
2 main spans
Daily traffic
104
2015 count
Owner
County
County Highway Agency

About this bridge

Nelson Creek RD over Nelson Creek is a prestressed concrete slab carrying Nelson Creek RD over Nelson Creek in Shasta County, California. It was built in 1986, so it is 39 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 104 vehicles a day, roughly 5% of them trucks, projected to reach 338 by 2043. The structure is 96 ft (29.3 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNelson Creek RD
CrossesNelson Creek
Location0.4 MI E Big Bend RD
RouteCounty Highway 0
Coordinates41.02291, -121.90434
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 protection8 Very GoodNo problems noted.
Last inspectionApril 2021
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length96 ft (29.3 m)
Longest span47 ft (14.3 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic104 (2015)
Projected traffic338 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Nelson Creek RD over Nelson Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nelson Creek RD over Nelson 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 April 2021.

How much traffic does Nelson Creek RD over Nelson Creek carry?

About 104 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Nelson Creek RD over Nelson Creek?

The structure is 96 ft (29.3 m) long with a longest span of 47 ft (14.3 m) and a deck 19 ft wide.

Who owns Nelson Creek RD over Nelson Creek?

It is owned by the County Highway Agency.