US Bridges

County Rte. a over Spillway Channel

Fair

Harlan County, Nebraska · Harlan County Lake · Structure no. CEPMRKNE0000002

Built
1952
73 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
856 ft
18 main spans
Daily traffic
350
2015 count
Owner
Federal
Corps of Engineers (Civil)

About this bridge

County Rte. a over Spillway Channel is a steel stringer/multi-beam or girder carrying County Rte. a over Spillway Channel in Harlan County, Nebraska. It was built in 1952, so it is 73 years old, older 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 5 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 350 vehicles a day, roughly 10% of them trucks, projected to reach 350 by 2041. The structure is 856 ft (260.9 m) long and 32 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesCounty Rte. a
CrossesSpillway Channel
LocationHarlan County Lake
RouteCounty Highway 0
CountyHarlan County
StateNebraska
Coordinates40.071, -99.21143
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans18
Design loadHS 20
Structure length856 ft (260.9 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2015)
Projected traffic350 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCorps of Engineers (Civil)
Maintained byCorps of Engineers (Civil)
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Rte. a over Spillway Channel built?

It was built in 1952, making it 73 years old in 2025.

What condition is County Rte. a over Spillway Channel 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 2024.

How much traffic does County Rte. a over Spillway Channel carry?

About 350 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is County Rte. a over Spillway Channel?

The structure is 856 ft (260.9 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns County Rte. a over Spillway Channel?

It is owned by the Corps of Engineers (Civil).