US Bridges

Local 11.3-D.2 over Trib. Little Osage River

PoorPosted for load

Bourbon County, Kansas · 0.2E 1.2S of Mapleton · Structure no. 000061087305762

Built
1930
95 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
2 main spans
Daily traffic
25
2006 count
Owner
County
County Highway Agency

About this bridge

Local 11.3-D.2 over Trib. Little Osage River is a steel stringer/multi-beam or girder carrying Local 11.3-D.2 over Trib. Little Osage River in Bourbon County, Kansas. It was built in 1930, so it is 95 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 25 by 2044. The structure is 44 ft (13.4 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesLocal 11.3-D.2
CrossesTrib. Little Osage River
Location0.2E 1.2S of Mapleton
RouteCounty Highway 0
CountyBourbon County
StateKansas
Coordinates37.99021, -94.87421
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 alignment8: Equal to present desirable criteria
Operating rating5.7 US tons
Inventory rating3.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span20 ft (6 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2006)
Projected traffic25 by 2044
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$200,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 11.3-D.2 over Trib. Little Osage River built?

It was built in 1930, making it 95 years old in 2025.

What condition is Local 11.3-D.2 over Trib. Little Osage River 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 Local 11.3-D.2 over Trib. Little Osage River carry?

About 25 vehicles per day (2006 count).

How long is Local 11.3-D.2 over Trib. Little Osage River?

The structure is 44 ft (13.4 m) long with a longest span of 20 ft (6 m) and a deck 23 ft wide.

Who owns Local 11.3-D.2 over Trib. Little Osage River?

It is owned by the County Highway Agency.