US Bridges

Nighthawk Rd. over Mud Creek

GoodPosted for load

Marion County, Kansas · 6.0E of Durham · Structure no. 000000000570580

Built
1965
60 years old
Condition
Good
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
145 ft
3 main spans
Daily traffic
45
2020 count
Owner
County
County Highway Agency

About this bridge

Nighthawk Rd. over Mud Creek is a concrete continuous tee beam carrying Nighthawk Rd. over Mud Creek in Marion County, Kansas. It was built in 1965, so it is 60 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 45 vehicles a day, roughly 1% of them trucks, projected to reach 80 by 2044. The structure is 145 ft (44.3 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNighthawk Rd.
CrossesMud Creek
Location6.0E of Durham
RouteCounty Highway 428
StateKansas
Coordinates38.48094, -97.11411
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length145 ft (44.3 m)
Longest span55 ft (16.7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic45 (2020)
Projected traffic80 by 2044
Trucks1%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nighthawk Rd. over Mud Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nighthawk Rd. over Mud 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 November 2024.

How much traffic does Nighthawk Rd. over Mud Creek carry?

About 45 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nighthawk Rd. over Mud Creek?

The structure is 145 ft (44.3 m) long with a longest span of 55 ft (16.7 m) and a deck 25 ft wide.

Who owns Nighthawk Rd. over Mud Creek?

It is owned by the County Highway Agency.