US Bridges

NE 120 RD over Stream

PoorPosted for load

Harper County, Kansas · 3.0N 1.0W of Danville · Structure no. 000390755906680

Built
1970
55 years old, rebuilt 2010
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
35 ft
2 main spans
Daily traffic
30
2021 count
Owner
County
County Highway Agency

About this bridge

NE 120 RD over Stream is a wood or timber stringer/multi-beam or girder carrying NE 120 RD over Stream in Harper County, Kansas. It was built in 1970 and reconstructed in 2010, so it is 55 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2043. The structure is 35 ft (10.7 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNE 120 RD
CrossesStream
Location3.0N 1.0W of Danville
RouteCounty Highway 0
StateKansas
Coordinates37.32736, -97.914
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating19.8 US tons

Structure

MaterialWood or Timber
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span17 ft (5.1 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2021)
Projected traffic30 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 120 RD over Stream built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2010.

What condition is NE 120 RD over Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does NE 120 RD over Stream carry?

About 30 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is NE 120 RD over Stream?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.1 m) and a deck 20 ft wide.

Who owns NE 120 RD over Stream?

It is owned by the County Highway Agency.