US Bridges

Fairpoint Rd. over Sulphur Ck

Fair

Meade County, South Dakota · 8.2 N 1.0 E Fairpoin · Structure no. 000000047400119

Built
1977
48 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

Fairpoint Rd. over Sulphur Ck is a prestressed concrete tee beam carrying Fairpoint Rd. over Sulphur Ck in Meade County, South Dakota. It was built in 1977, so it is 48 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 33 vehicles a day, roughly 2% of them trucks, projected to reach 33 by 2032. The structure is 100 ft (30.5 m) long and 31 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

CarriesFairpoint Rd.
CrossesSulphur Ck
Location8.2 N 1.0 E Fairpoin
RouteCounty Highway 0
Coordinates44.86529, -102.77628
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 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
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating32.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fairpoint Rd. over Sulphur Ck built?

It was built in 1977, making it 48 years old in 2025.

What condition is Fairpoint 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 Fairpoint Rd. over Sulphur Ck carry?

About 33 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Fairpoint Rd. over Sulphur Ck?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Fairpoint Rd. over Sulphur Ck?

It is owned by the County Highway Agency.