US Bridges

311th Street over Plum Creek

FairPosted for load

Miami County, Kansas · 4.7W 0.7S of Paola · Structure no. 000611075504980

Built
1930
95 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
74
2011 count
Owner
County
County Highway Agency

About this bridge

311th Street over Plum Creek is a concrete slab carrying 311th Street over Plum Creek in Miami 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 74 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2043. The structure is 22 ft (6.7 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries311th Street
CrossesPlum Creek
Location4.7W 0.7S of Paola
RouteCounty Highway 0
CountyMiami County
StateKansas
Coordinates38.56393, -94.96469
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating20 US tons
Inventory rating14 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6 m)
Deck width21 ft (6.3 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic74 (2011)
Projected traffic80 by 2043
Trucks10%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$550,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 311th Street over Plum Creek built?

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

What condition is 311th Street over Plum Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does 311th Street over Plum Creek carry?

About 74 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is 311th Street over Plum Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6 m) and a deck 21 ft wide.

Who owns 311th Street over Plum Creek?

It is owned by the County Highway Agency.