US Bridges

30th Rd. (rs 1231) over Manley Creek

Fair

Marshall County, Kansas · 1.0S of St. Bridget · Structure no. 000000000580610

Built
1955
70 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
55
2007 count
Owner
County
County Highway Agency

About this bridge

30th Rd. (rs 1231) over Manley Creek is a steel stringer/multi-beam or girder carrying 30th Rd. (rs 1231) over Manley Creek in Marshall County, Kansas. It was built in 1955, so it is 70 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.

It carries about 55 vehicles a day, projected to reach 55 by 2043. The structure is 62 ft (18.9 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries30th Rd. (rs 1231)
CrossesManley Creek
Location1.0S of St. Bridget
RouteCounty Highway 1231
CountyMarshall County
StateKansas
Coordinates39.95108, -96.25829
Functional classRural Major 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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating42.7 US tons
Inventory rating25.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span60 ft (18.2 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic55 (2007)
Projected traffic55 by 2043
Trucks0%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$125,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 30th Rd. (rs 1231) over Manley Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is 30th Rd. (rs 1231) over Manley 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 30th Rd. (rs 1231) over Manley Creek carry?

About 55 vehicles per day (2007 count).

How long is 30th Rd. (rs 1231) over Manley Creek?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.2 m) and a deck 22 ft wide.

Who owns 30th Rd. (rs 1231) over Manley Creek?

It is owned by the County Highway Agency.