US Bridges

Minor 18.58-11.5E over Baldwin Creek

Fair

Douglas County, Kansas · 1.0W 1.0N of Lawrence · Structure no. 000231039504364

Built
1988
37 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
176
2023 count
Owner
County
County Highway Agency

About this bridge

Minor 18.58-11.5E over Baldwin Creek is a concrete continuous slab carrying Minor 18.58-11.5E over Baldwin Creek in Douglas County, Kansas. It was built in 1988, so it is 37 years old, younger 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 6 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 176 vehicles a day, roughly 6% of them trucks, projected to reach 194 by 2044. The structure is 122 ft (37.3 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMinor 18.58-11.5E
CrossesBaldwin Creek
Location1.0W 1.0N of Lawrence
RouteCounty Highway 2310
StateKansas
Coordinates39.01, -95.28852
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to 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 rating60 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.3 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic176 (2023)
Projected traffic194 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor 18.58-11.5E over Baldwin Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Minor 18.58-11.5E over Baldwin 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 March 2024.

How much traffic does Minor 18.58-11.5E over Baldwin Creek carry?

About 176 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Minor 18.58-11.5E over Baldwin Creek?

The structure is 122 ft (37.3 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns Minor 18.58-11.5E over Baldwin Creek?

It is owned by the County Highway Agency.