US Bridges

150th over Little Rock Creek

PoorPosted for load

Jefferson County, Kansas · 1.0S 4.4E of Valley Fall · Structure no. 000441029403940

Built
1977
48 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

150th over Little Rock Creek is a steel stringer/multi-beam or girder carrying 150th over Little Rock Creek in Jefferson County, Kansas. It was built in 1977, so it is 48 years old, younger 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 4 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 15 vehicles a day, projected to reach 20 by 2040. The structure is 29 ft (8.8 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries150th
CrossesLittle Rock Creek
Location1.0S 4.4E of Valley Fall
RouteCounty Highway 0
CountyJefferson County
StateKansas
Coordinates39.31809, -95.37811
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36.7 US tons
Inventory rating21.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15 (2022)
Projected traffic20 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$205,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 150th over Little Rock Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is 150th over Little Rock Creek 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 November 2024.

How much traffic does 150th over Little Rock Creek carry?

About 15 vehicles per day (2022 count).

How long is 150th over Little Rock Creek?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 21 ft wide.

Who owns 150th over Little Rock Creek?

It is owned by the County Highway Agency.