US Bridges

Twilight RD over Trail Creek

Fair

Butte County, South Dakota · 6.4S & 11.5E Hoover · Structure no. 000000010500134

Built
2020
5 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
45 ft
6 main spans
Daily traffic
8
2022 count
Owner
County
County Highway Agency

About this bridge

Twilight RD over Trail Creek is a concrete culvert carrying Twilight RD over Trail Creek in Butte County, South Dakota. It was built in 2020, so it is 5 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 5 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 8 vehicles a day, roughly 2% of them trucks, projected to reach 31 by 2032. The structure is 45 ft (13.7 m) long and 20 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

Location

Open in Google Maps
CarriesTwilight RD
CrossesTrail Creek
Location6.4S & 11.5E Hoover
RouteCounty Highway 0
CountyButte County
StateSouth Dakota
Coordinates45.01901, -103.04041
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span6 ft (1.8 m)
Deck width20 ft (6.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8 (2022)
Projected traffic31 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Twilight RD over Trail Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Twilight RD over Trail Creek 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 2024.

How much traffic does Twilight RD over Trail Creek carry?

About 8 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Twilight RD over Trail Creek?

The structure is 45 ft (13.7 m) long with a longest span of 6 ft (1.8 m) and a deck 20 ft wide.

Who owns Twilight RD over Trail Creek?

It is owned by the County Highway Agency.