US Bridges

Silverlake RD over Stream

Good

Adams County, Nebraska · 5S 5.3W Ayr · Structure no. C000114816

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Culvert
Steel
Length
27 ft
3 main spans
Daily traffic
20
2010 count
Owner
County
County Highway Agency

About this bridge

Silverlake RD over Stream is a steel culvert carrying Silverlake RD over Stream in Adams County, Nebraska. It was built in 2010, so it is 15 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, projected to reach 34 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesSilverlake RD
CrossesStream
Location5S 5.3W Ayr
RouteCounty Highway 148
CountyAdams County
StateNebraska
Coordinates40.3649, -98.5471
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating26.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2010)
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 Stream built?

It was built in 2010, making it 15 years old in 2025.

What condition is Silverlake RD over Stream 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 August 2024.

How much traffic does Silverlake RD over Stream carry?

About 20 vehicles per day (2010 count).

How long is Silverlake RD over Stream?

The structure is 27 ft (8.2 m) long with a longest span of 6 ft (1.8 m).

Who owns Silverlake RD over Stream?

It is owned by the County Highway Agency.