US Bridges

1950 9.8-O.9 over Coal Creek

Good

Allen County, Kansas · 4.0E of Humboldt · Structure no. 000011033805989

Built
1990
35 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
132 ft
3 main spans
Daily traffic
30
2006 count
Owner
County
County Highway Agency

About this bridge

1950 9.8-O.9 over Coal Creek is a concrete continuous slab carrying 1950 9.8-O.9 over Coal Creek in Allen County, Kansas. It was built in 1990, so it is 35 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 30 vehicles a day, projected to reach 30 by 2044. The structure is 132 ft (40.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries1950 9.8-O.9
CrossesCoal Creek
Location4.0E of Humboldt
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates37.82185, -95.35786
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.7 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span49 ft (14.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2006)
Projected traffic30 by 2044
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$384,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1950 9.8-O.9 over Coal Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is 1950 9.8-O.9 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 February 2024.

How much traffic does 1950 9.8-O.9 over Coal Creek carry?

About 30 vehicles per day (2006 count).

How long is 1950 9.8-O.9 over Coal Creek?

The structure is 132 ft (40.2 m) long with a longest span of 49 ft (14.9 m) and a deck 26 ft wide.

Who owns 1950 9.8-O.9 over Coal Creek?

It is owned by the County Highway Agency.