US Bridges

SR756 Centerville over Rocky Slough

Fair

Douglas County, Nevada · Southeast of Gardnerville · Structure no. B 285

Built
1935
90 years old, rebuilt 1951
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
56 ft
5 main spans
Daily traffic
7,950
2021 count
Owner
State
State Highway Agency

About this bridge

SR756 Centerville over Rocky Slough is a concrete culvert carrying SR756 Centerville over Rocky Slough in Douglas County, Nevada. It was built in 1935 and reconstructed in 1951, so it is 90 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,950 vehicles a day, roughly 4% of them trucks, projected to reach 19,607 by 2040. The structure is 56 ft (17.1 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR756 Centerville
CrossesRocky Slough
LocationSoutheast of Gardnerville
RouteState Highway 756
CountyDouglas County
StateNevada
Coordinates38.91752, -119.74689
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating29.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span10 ft (3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,950 (2021)
Projected traffic19,607 by 2040
Trucks4%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$299,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR756 Centerville over Rocky Slough built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1951.

What condition is SR756 Centerville over Rocky Slough in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does SR756 Centerville over Rocky Slough carry?

About 7,950 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is SR756 Centerville over Rocky Slough?

The structure is 56 ft (17.1 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns SR756 Centerville over Rocky Slough?

It is owned by the State Highway Agency.