US Bridges

6th Rd. Rs 431 over Hop Creek

Fair

Marshall County, Kansas · 4.5S of Herkimer · Structure no. 000000000580080

Built
1928
97 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
207
2007 count
Owner
County
County Highway Agency

About this bridge

6th Rd. Rs 431 over Hop Creek is a steel stringer/multi-beam or girder carrying 6th Rd. Rs 431 over Hop Creek in Marshall County, Kansas. It was built in 1928, so it is 97 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 207 vehicles a day, projected to reach 250 by 2043. The structure is 43 ft (13.1 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries6th Rd. Rs 431
CrossesHop Creek
Location4.5S of Herkimer
RouteCounty Highway 431
CountyMarshall County
StateKansas
Coordinates39.8255, -96.71268
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.
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.3 US tons
Inventory rating18.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span40 ft (12.1 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic207 (2007)
Projected traffic250 by 2043
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$87,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6th Rd. Rs 431 over Hop Creek built?

It was built in 1928, making it 97 years old in 2025.

What condition is 6th Rd. Rs 431 over Hop 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 May 2023.

How much traffic does 6th Rd. Rs 431 over Hop Creek carry?

About 207 vehicles per day (2007 count).

How long is 6th Rd. Rs 431 over Hop Creek?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.1 m) and a deck 23 ft wide.

Who owns 6th Rd. Rs 431 over Hop Creek?

It is owned by the County Highway Agency.