US Bridges

N70 over Clear Creek

Good

Custer County, Nebraska · 1E Westerville · Structure no. S070 08893

Built
1966
59 years old, rebuilt 2001
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
114 ft
3 main spans
Daily traffic
640
2018 count
Owner
State
State Highway Agency

About this bridge

N70 over Clear Creek is a concrete continuous slab carrying N70 over Clear Creek in Custer County, Nebraska. It was built in 1966 and reconstructed in 2001, so it is 59 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 640 vehicles a day, roughly 11% of them trucks, projected to reach 832 by 2038. The structure is 114 ft (34.7 m) long and 38 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesN70
CrossesClear Creek
Location1E Westerville
RouteState Highway 70
Coordinates41.3943, -99.3707
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length114 ft (34.7 m)
Longest span45 ft (13.7 m)
Deck width38 ft (11.5 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2018)
Projected traffic832 by 2038
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 N70 over Clear Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2001.

What condition is N70 over Clear Creek 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 November 2024.

How much traffic does N70 over Clear Creek carry?

About 640 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is N70 over Clear Creek?

The structure is 114 ft (34.7 m) long with a longest span of 45 ft (13.7 m) and a deck 38 ft wide.

Who owns N70 over Clear Creek?

It is owned by the State Highway Agency.