US Bridges

Rock Road over Rock RD So Trib Gypsum C

FairPosted for load

Sedgwick County, Kansas · Rock Road at Grail · Structure no. 430400876625010

Built
1900
125 years old, rebuilt 1976
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
26,400
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rock Road over Rock RD So Trib Gypsum C is a concrete culvert carrying Rock Road over Rock RD So Trib Gypsum C in Sedgwick County, Kansas. It was built in 1900 and reconstructed in 1976, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 26,400 vehicles a day, roughly 2% of them trucks, projected to reach 33,000 by 2039. The structure is 32 ft (9.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRock Road
CrossesRock RD So Trib Gypsum C
LocationRock Road at Grail
RouteCity Street 6625
CountySedgwick County
StateKansas
Coordinates37.66727, -97.24445
Functional classUrban Minor Arterial

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating19.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length32 ft (9.9 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 traffic26,400 (2006)
Projected traffic33,000 by 2039
Trucks2%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$80,000
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1976.

What condition is Rock Road over Rock RD So Trib Gypsum C 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 August 2023.

How much traffic does Rock Road over Rock RD So Trib Gypsum C carry?

About 26,400 vehicles per day (2006 count), of which roughly 2% are trucks.

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

The structure is 32 ft (9.9 m) long with a longest span of 10 ft (3 m).

Who owns Rock Road over Rock RD So Trib Gypsum C?

It is owned by the City or Municipal Highway Agency.