US Bridges

4800 St. 24.0-A.8 over Middle Creek

Fair

Allen County, Kansas · 0.2N 4.0E of Mildred · Structure no. 000011063005708

Built
1930
95 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
21 ft
3 main spans
Daily traffic
20
2006 count
Owner
County
County Highway Agency

About this bridge

4800 St. 24.0-A.8 over Middle Creek is a concrete slab carrying 4800 St. 24.0-A.8 over Middle Creek in Allen County, Kansas. It was built in 1930, so it is 95 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 20 vehicles a day, projected to reach 20 by 2044. The structure is 21 ft (6.4 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries4800 St. 24.0-A.8
CrossesMiddle Creek
Location0.2N 4.0E of Mildred
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates38.02574, -95.09653
Functional classRural Local

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.
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 inspectionFebruary 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating29.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2006)
Projected traffic20 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$345,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 4800 St. 24.0-A.8 over Middle Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is 4800 St. 24.0-A.8 over Middle 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 February 2024.

How much traffic does 4800 St. 24.0-A.8 over Middle Creek carry?

About 20 vehicles per day (2006 count).

How long is 4800 St. 24.0-A.8 over Middle Creek?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m) and a deck 27 ft wide.

Who owns 4800 St. 24.0-A.8 over Middle Creek?

It is owned by the County Highway Agency.