US Bridges

Longford over Rock RD So Trib Gypsum C

GoodPosted for load

Sedgwick County, Kansas · Longford at Lockmoor · Structure no. 530400870GCCH20

Built
1974
51 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
300
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Longford over Rock RD So Trib Gypsum C is a concrete culvert carrying Longford over Rock RD So Trib Gypsum C in Sedgwick County, Kansas. It was built in 1974, so it is 51 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. Its operating status is: posted for load restriction.

It carries about 300 vehicles a day, roughly 1% of them trucks, projected to reach 400 by 2039. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLongford
CrossesRock RD So Trib Gypsum C
LocationLongford at Lockmoor
RouteCity Street 0
CountySedgwick County
StateKansas
Coordinates37.66374, -97.23672
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 statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31 US tons
Inventory rating31 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.3 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 traffic300 (2006)
Projected traffic400 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Longford over Rock RD So Trib Gypsum C built?

It was built in 1974, making it 51 years old in 2025.

What condition is Longford over Rock RD So Trib Gypsum C 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 Longford over Rock RD So Trib Gypsum C carry?

About 300 vehicles per day (2006 count), of which roughly 1% are trucks.

How long is Longford over Rock RD So Trib Gypsum C?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns Longford over Rock RD So Trib Gypsum C?

It is owned by the City or Municipal Highway Agency.