US Bridges

US75 HWY over Rock Creek Drainage

Fair

Montgomery County, Kansas · 0.79 MI S Wjct US160 · Structure no. 999907500630051

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
4,155
2023 count
Owner
State
State Highway Agency

About this bridge

US75 HWY over Rock Creek Drainage is a concrete culvert carrying US75 HWY over Rock Creek Drainage in Montgomery County, Kansas. It was built in 1966, so it is 59 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 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 4,155 vehicles a day, roughly 14% of them trucks, projected to reach 5,070 by 2044. The structure is 25 ft (7.6 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS75 HWY
CrossesRock Creek Drainage
Location0.79 MI S Wjct US160
RouteU.S. Route 75
CountyMontgomery County
StateKansas
Coordinates37.21417, -95.765
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.6 US tons
Inventory rating19 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length25 ft (7.6 m)
Longest span8 ft (2.4 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,155 (2023)
Projected traffic5,070 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US75 HWY over Rock Creek Drainage built?

It was built in 1966, making it 59 years old in 2025.

What condition is US75 HWY over Rock Creek Drainage 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 2023.

How much traffic does US75 HWY over Rock Creek Drainage carry?

About 4,155 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US75 HWY over Rock Creek Drainage?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m) and a deck 46 ft wide.

Who owns US75 HWY over Rock Creek Drainage?

It is owned by the State Highway Agency.