US Bridges

Local Road 71AA over Trib. to Lost Creek

Good

Linn County, Kansas · 5.3S 4.5W of Mound City · Structure no. 000541085005648

Built
1999
26 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
25
2006 count
Owner
County
County Highway Agency

About this bridge

Local Road 71AA over Trib. to Lost Creek is a prestressed concrete tee beam carrying Local Road 71AA over Trib. to Lost Creek in Linn County, Kansas. It was built in 1999, so it is 26 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, roughly 1% of them trucks, projected to reach 35 by 2044. The structure is 47 ft (14.4 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLocal Road 71AA
CrossesTrib. to Lost Creek
Location5.3S 4.5W of Mound City
RouteCounty Highway 0
StateKansas
Coordinates38.06794, -94.89729
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.6 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length47 ft (14.4 m)
Longest span46 ft (13.9 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2006)
Projected traffic35 by 2044
Trucks1%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road 71AA over Trib. to Lost Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Local Road 71AA over Trib. to Lost Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does Local Road 71AA over Trib. to Lost Creek carry?

About 25 vehicles per day (2006 count), of which roughly 1% are trucks.

How long is Local Road 71AA over Trib. to Lost Creek?

The structure is 47 ft (14.4 m) long with a longest span of 46 ft (13.9 m) and a deck 29 ft wide.

Who owns Local Road 71AA over Trib. to Lost Creek?

It is owned by the County Highway Agency.