US Bridges

Silverlake RD over Dove Creek West Branch

Fair

Adams County, Nebraska · 5S 2.3W Ayr · Structure no. C000114817

Built
1984
41 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
20
2003 count
Owner
County
County Highway Agency

About this bridge

Silverlake RD over Dove Creek West Branch is a concrete culvert carrying Silverlake RD over Dove Creek West Branch in Adams County, Nebraska. It was built in 1984, so it is 41 years old, younger than the Nebraska average of 47.1 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 20 vehicles a day, projected to reach 34 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesSilverlake RD
CrossesDove Creek West Branch
Location5S 2.3W Ayr
RouteCounty Highway 148
CountyAdams County
StateNebraska
Coordinates40.36497, -98.4826
Functional classRural Local

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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2003)
Projected traffic34 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 Silverlake RD over Dove Creek West Branch built?

It was built in 1984, making it 41 years old in 2025.

What condition is Silverlake RD over Dove Creek West Branch 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 October 2023.

How much traffic does Silverlake RD over Dove Creek West Branch carry?

About 20 vehicles per day (2003 count).

How long is Silverlake RD over Dove Creek West Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Silverlake RD over Dove Creek West Branch?

It is owned by the County Highway Agency.