US Bridges

311th Street over Dorsey Br. of S. Wea

Fair

Miami County, Kansas · 0.6S 1.7E of Paola · Structure no. 000000000610592

Built
1983
42 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
238 ft
3 main spans
Daily traffic
1,804
2011 count
Owner
County
County Highway Agency

About this bridge

311th Street over Dorsey Br. of S. Wea is a steel continuous stringer/multi-beam or girder carrying 311th Street over Dorsey Br. of S. Wea in Miami County, Kansas. It was built in 1983, so it is 42 years old, younger 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,804 vehicles a day, roughly 10% of them trucks, projected to reach 1,900 by 2043. The structure is 238 ft (72.5 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries311th Street
CrossesDorsey Br. of S. Wea
Location0.6S 1.7E of Paola
RouteCounty Highway 1705
CountyMiami County
StateKansas
Coordinates38.56331, -94.84646
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span92 ft (28 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,804 (2011)
Projected traffic1,900 by 2043
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 311th Street over Dorsey Br. of S. Wea built?

It was built in 1983, making it 42 years old in 2025.

What condition is 311th Street over Dorsey Br. of S. Wea 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 June 2023.

How much traffic does 311th Street over Dorsey Br. of S. Wea carry?

About 1,804 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is 311th Street over Dorsey Br. of S. Wea?

The structure is 238 ft (72.5 m) long with a longest span of 92 ft (28 m) and a deck 30 ft wide.

Who owns 311th Street over Dorsey Br. of S. Wea?

It is owned by the County Highway Agency.