US Bridges

Triple Creek Rd. over Sulphur Ck

Fair

Meade County, South Dakota · 3E & 15.6S Maurine · Structure no. 000000047520166

Built
1940
85 years old, rebuilt 1962
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
86 ft
3 main spans
Daily traffic
17
2022 count
Owner
County
County Highway Agency

About this bridge

Triple Creek Rd. over Sulphur Ck is a steel stringer/multi-beam or girder carrying Triple Creek Rd. over Sulphur Ck in Meade County, South Dakota. It was built in 1940 and reconstructed in 1962, so it is 85 years old, older 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 17 vehicles a day, roughly 2% of them trucks, projected to reach 17 by 2032. The structure is 86 ft (26.3 m) long and 24 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesTriple Creek Rd.
CrossesSulphur Ck
Location3E & 15.6S Maurine
RouteCounty Highway 0
Coordinates44.79877, -102.53247
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating37.1 US tons
Inventory rating27.8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans3
Design loadUnknown
Structure length86 ft (26.3 m)
Longest span47 ft (14.3 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17 (2022)
Projected traffic17 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$4,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Triple Creek Rd. over Sulphur Ck built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1962.

What condition is Triple Creek Rd. over Sulphur 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 Triple Creek Rd. over Sulphur Ck carry?

About 17 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Triple Creek Rd. over Sulphur Ck?

The structure is 86 ft (26.3 m) long with a longest span of 47 ft (14.3 m) and a deck 24 ft wide.

Who owns Triple Creek Rd. over Sulphur Ck?

It is owned by the County Highway Agency.