US Bridges

Rs 2121 M-5.7 over Trib Spring Creek

PoorPosted for load

Wabaunsee County, Kansas · 6.6W of Alma · Structure no. 000000000990640

Built
1935
90 years old
Condition
Poor
inspected November 2023
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
25
2013 count
Owner
County
County Highway Agency

About this bridge

Rs 2121 M-5.7 over Trib Spring Creek is a concrete tee beam carrying Rs 2121 M-5.7 over Trib Spring Creek in Wabaunsee County, Kansas. It was built in 1935, so it is 90 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 25 vehicles a day, projected to reach 30 by 2043. The structure is 33 ft (10.1 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRs 2121 M-5.7
CrossesTrib Spring Creek
Location6.6W of Alma
RouteCounty Highway 2121
StateKansas
Coordinates39.01571, -96.41408
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating27 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span26 ft (7.9 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2013)
Projected traffic30 by 2043
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$340,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 2121 M-5.7 over Trib Spring Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Rs 2121 M-5.7 over Trib 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 November 2023.

How much traffic does Rs 2121 M-5.7 over Trib Spring Creek carry?

About 25 vehicles per day (2013 count).

How long is Rs 2121 M-5.7 over Trib Spring Creek?

The structure is 33 ft (10.1 m) long with a longest span of 26 ft (7.9 m) and a deck 27 ft wide.

Who owns Rs 2121 M-5.7 over Trib Spring Creek?

It is owned by the County Highway Agency.