US Bridges

N36 over Elkhorn River Overflow

Fair

Douglas County, Nebraska · 3W Elk City · Structure no. S036 00585

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
3,695
2018 count
Owner
State
State Highway Agency

About this bridge

N36 over Elkhorn River Overflow is a concrete continuous slab carrying N36 over Elkhorn River Overflow in Douglas County, Nebraska. It was built in 1970, so it is 55 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 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 3,695 vehicles a day, roughly 10% of them trucks, projected to reach 5,358 by 2038. The structure is 82 ft (25 m) long and 43 ft wide. If it were closed, the detour would be 87 mi (140 km).

CarriesN36
CrossesElkhorn River Overflow
Location3W Elk City
RouteState Highway 36
Coordinates41.379, -96.3163
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (25 m)
Longest span33 ft (10.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,695 (2018)
Projected traffic5,358 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed87 mi (140 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N36 over Elkhorn River Overflow built?

It was built in 1970, making it 55 years old in 2025.

What condition is N36 over Elkhorn River Overflow 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 March 2024.

How much traffic does N36 over Elkhorn River Overflow carry?

About 3,695 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N36 over Elkhorn River Overflow?

The structure is 82 ft (25 m) long with a longest span of 33 ft (10.1 m) and a deck 43 ft wide.

Who owns N36 over Elkhorn River Overflow?

It is owned by the State Highway Agency.