US Bridges

G-12.4 Minor over Little Arkansas River

PoorPosted for load

Harvey County, Kansas · 0.5E of Halstead · Structure no. 000400803405760

Built
1925
100 years old
Condition
Poor
inspected April 2024
Type
Tee Beam
Concrete
Length
264 ft
6 main spans
Daily traffic
75
2006 count
Owner
County
County Highway Agency

About this bridge

G-12.4 Minor over Little Arkansas River is a concrete tee beam carrying G-12.4 Minor over Little Arkansas River in Harvey County, Kansas. It was built in 1925, so it is 100 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, projected to reach 90 by 2042. The structure is 264 ft (80.5 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesG-12.4 Minor
CrossesLittle Arkansas River
Location0.5E of Halstead
RouteCounty Highway 4006
StateKansas
Coordinates37.99972, -97.49111
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.2 US tons
Inventory rating9.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length264 ft (80.5 m)
Longest span42 ft (12.8 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic75 (2006)
Projected traffic90 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$800,000
NavigationNo navigation control on waterway

Frequently asked questions

When was G-12.4 Minor over Little Arkansas River built?

It was built in 1925, making it 100 years old in 2025.

What condition is G-12.4 Minor over Little Arkansas River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does G-12.4 Minor over Little Arkansas River carry?

About 75 vehicles per day (2006 count).

How long is G-12.4 Minor over Little Arkansas River?

The structure is 264 ft (80.5 m) long with a longest span of 42 ft (12.8 m) and a deck 23 ft wide.

Who owns G-12.4 Minor over Little Arkansas River?

It is owned by the County Highway Agency.