US Bridges

Minor Col R-31 over Coal Creek

Good

Nemaha County, Kansas · 11.0S 1.0E of Centralia · Structure no. 000660949903600

Built
2005
20 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
50
2008 count
Owner
County
County Highway Agency

About this bridge

Minor Col R-31 over Coal Creek is a concrete continuous slab carrying Minor Col R-31 over Coal Creek in Nemaha County, Kansas. It was built in 2005, so it is 20 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 50 vehicles a day, projected to reach 70 by 2044. The structure is 100 ft (30.5 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMinor Col R-31
CrossesCoal Creek
Location11.0S 1.0E of Centralia
RouteCounty Highway 7522
StateKansas
Coordinates39.56592, -96.10872
Functional classRural Minor Collector

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.8 US tons
Inventory rating47.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span40 ft (12.1 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2008)
Projected traffic70 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$110,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor Col R-31 over Coal Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Minor Col R-31 over Coal 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 March 2024.

How much traffic does Minor Col R-31 over Coal Creek carry?

About 50 vehicles per day (2008 count).

How long is Minor Col R-31 over Coal Creek?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.1 m) and a deck 28 ft wide.

Who owns Minor Col R-31 over Coal Creek?

It is owned by the County Highway Agency.