US Bridges

Mainsgate over Trib to Fourmile Creek

Good

Sedgwick County, Kansas · Mainsgate at Williamsgate · Structure no. 530400870WBFM52

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
200
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mainsgate over Trib to Fourmile Creek is a concrete culvert carrying Mainsgate over Trib to Fourmile Creek in Sedgwick County, Kansas. It was built in 2007, so it is 18 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 2% of them trucks, projected to reach 350 by 2039. The structure is 32 ft (9.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMainsgate
CrossesTrib to Fourmile Creek
LocationMainsgate at Williamsgate
RouteCity Street 0
StateKansas
Coordinates37.73, -97.18121
Functional classUrban Local

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.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic200 (2006)
Projected traffic350 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Mainsgate over Trib to Fourmile Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Mainsgate over Trib to Fourmile 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 September 2023.

How much traffic does Mainsgate over Trib to Fourmile Creek carry?

About 200 vehicles per day (2006 count), of which roughly 2% are trucks.

How long is Mainsgate over Trib to Fourmile Creek?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m).

Who owns Mainsgate over Trib to Fourmile Creek?

It is owned by the City or Municipal Highway Agency.