US Bridges

Fort Randall Road over Randall Ck

Fair

Gregory County, South Dakota · 0.6S Ft Randall Dam · Structure no. 000000027494316

Built
1985
40 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
30 ft
1 main span
Daily traffic
36
2022 count
Owner
County
County Highway Agency

About this bridge

Fort Randall Road over Randall Ck is a steel culvert carrying Fort Randall Road over Randall Ck in Gregory County, South Dakota. It was built in 1985, so it is 40 years old, younger than the South Dakota average of 48.9 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 36 vehicles a day, roughly 3% of them trucks, projected to reach 40 by 2032. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 11.8 mi (19 km).

CarriesFort Randall Road
CrossesRandall Ck
Location0.6S Ft Randall Dam
RouteCounty Highway 0
Coordinates43.04242, -98.56001
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.1 US tons
Inventory rating49.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2022)
Projected traffic40 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$16,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fort Randall Road over Randall Ck built?

It was built in 1985, making it 40 years old in 2025.

What condition is Fort Randall Road over Randall Ck 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 July 2024.

How much traffic does Fort Randall Road over Randall Ck carry?

About 36 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Fort Randall Road over Randall Ck?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m).

Who owns Fort Randall Road over Randall Ck?

It is owned by the County Highway Agency.