US Bridges

Rs 601 71st over Spring Creek

PoorPosted for load

Sedgwick County, Kansas · 71STS 0.7 E of 135THW · Structure no. 000000000871200

Built
1970
55 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
1,816
2022 count
Owner
County
County Highway Agency

About this bridge

Rs 601 71st over Spring Creek is a steel stringer/multi-beam or girder carrying Rs 601 71st over Spring Creek in Sedgwick County, Kansas. It was built in 1970, 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 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 1,816 vehicles a day, roughly 14% of them trucks, projected to reach 2,216 by 2044. The structure is 41 ft (12.5 m) long and 48 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRs 601 71st
CrossesSpring Creek
Location71STS 0.7 E of 135THW
RouteCounty Highway 601
StateKansas
Coordinates37.56285, -97.48487
Functional classRural Major Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry8: Equal to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.4 US tons
Inventory rating11.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length41 ft (12.5 m)
Longest span40 ft (12.1 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,816 (2022)
Projected traffic2,216 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$650,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 601 71st over Spring Creek built?

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

What condition is Rs 601 71st over Spring 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 July 2024.

How much traffic does Rs 601 71st over Spring Creek carry?

About 1,816 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Rs 601 71st over Spring Creek?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.1 m) and a deck 48 ft wide.

Who owns Rs 601 71st over Spring Creek?

It is owned by the County Highway Agency.