US Bridges

NE 70 Ave over Stream

FairPosted for load

Harper County, Kansas · 3.0N 1.0W of Danville · Structure no. 000390757006681

Built
1998
27 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
20
2021 count
Owner
County
County Highway Agency

About this bridge

NE 70 Ave over Stream is a steel stringer/multi-beam or girder carrying NE 70 Ave over Stream in Harper County, Kansas. It was built in 1998, so it is 27 years old, younger than the Kansas average of 52.8 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 20 by 2043. The structure is 40 ft (12.3 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNE 70 Ave
CrossesStream
Location3.0N 1.0W of Danville
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.32678, -97.91303
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating14 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span38 ft (11.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2021)
Projected traffic20 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$400,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NE 70 Ave over Stream built?

It was built in 1998, making it 27 years old in 2025.

What condition is NE 70 Ave over Stream 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 June 2024.

How much traffic does NE 70 Ave over Stream carry?

About 20 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is NE 70 Ave over Stream?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.6 m) and a deck 24 ft wide.

Who owns NE 70 Ave over Stream?

It is owned by the County Highway Agency.