US Bridges

4600 St. 23.0-D.5 over Stream

GoodPosted for load

Allen County, Kansas · 3.5S 3.0E of Mildred · Structure no. 000011061005765

Built
1958
67 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
60
2006 count
Owner
County
County Highway Agency

About this bridge

4600 St. 23.0-D.5 over Stream is a concrete continuous tee beam carrying 4600 St. 23.0-D.5 over Stream in Allen County, Kansas. It was built in 1958, so it is 67 years old, older 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. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, projected to reach 60 by 2044. The structure is 133 ft (40.5 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries4600 St. 23.0-D.5
CrossesStream
Location3.5S 3.0E of Mildred
RouteCounty Highway 127
CountyAllen County
StateKansas
Coordinates37.98671, -95.11545
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length133 ft (40.5 m)
Longest span50 ft (15.2 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 traffic60 (2006)
Projected traffic60 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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$356,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 4600 St. 23.0-D.5 over Stream built?

It was built in 1958, making it 67 years old in 2025.

What condition is 4600 St. 23.0-D.5 over Stream 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 4600 St. 23.0-D.5 over Stream carry?

About 60 vehicles per day (2006 count).

How long is 4600 St. 23.0-D.5 over Stream?

The structure is 133 ft (40.5 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns 4600 St. 23.0-D.5 over Stream?

It is owned by the County Highway Agency.