US Bridges

Old Main Street over Slate Creek

Good

Harvey County, Kansas · 7th St. & Main · Structure no. 420500404111001

Built
1982
43 years old, rebuilt 2004
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
2,325
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Main Street over Slate Creek is a concrete culvert carrying Old Main Street over Slate Creek in Harvey County, Kansas. It was built in 1982 and reconstructed in 2004, so it is 43 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,325 vehicles a day, roughly 8% of them trucks, projected to reach 4,200 by 2043. The structure is 37 ft (11.4 m) long and 50 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesOld Main Street
CrossesSlate Creek
Location7th St. & Main
RouteCity Street C4111
StateKansas
Coordinates38.03534, -97.34578
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span12 ft (3.6 m)
Deck width50 ft (15.1 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,325 (2019)
Projected traffic4,200 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Old Main Street over Slate Creek built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2004.

What condition is Old Main Street over Slate 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 December 2023.

How much traffic does Old Main Street over Slate Creek carry?

About 2,325 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Old Main Street over Slate Creek?

The structure is 37 ft (11.4 m) long with a longest span of 12 ft (3.6 m) and a deck 50 ft wide.

Who owns Old Main Street over Slate Creek?

It is owned by the City or Municipal Highway Agency.