US Bridges

N13 over Elkhorn R Overflow

Fair

Pierce County, Nebraska · .6E Hadar · Structure no. S013 00043

Built
1975
50 years old, rebuilt 2004
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
3,970
2018 count
Owner
State
State Highway Agency

About this bridge

N13 over Elkhorn R Overflow is a concrete culvert carrying N13 over Elkhorn R Overflow in Pierce County, Nebraska. It was built in 1975 and reconstructed in 2004, so it is 50 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 3,970 vehicles a day, roughly 6% of them trucks, projected to reach 5,161 by 2038. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN13
CrossesElkhorn R Overflow
Location.6E Hadar
RouteState Highway 13
Coordinates42.1053, -97.4377
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable 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 spans3
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,970 (2018)
Projected traffic5,161 by 2038
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 N13 over Elkhorn R Overflow built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2004.

What condition is N13 over Elkhorn R 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 October 2024.

How much traffic does N13 over Elkhorn R Overflow carry?

About 3,970 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is N13 over Elkhorn R Overflow?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns N13 over Elkhorn R Overflow?

It is owned by the State Highway Agency.