US Bridges

Coyote Lane over Spearfish Ck

Good

Lawrence County, South Dakota · 1.5S Savoy · Structure no. 000000041070183

Built
2021
4 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
10
2022 count
Owner
County
County Highway Agency

About this bridge

Coyote Lane over Spearfish Ck is a steel stringer/multi-beam or girder carrying Coyote Lane over Spearfish Ck in Lawrence County, South Dakota. It was built in 2021, so it is 4 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, roughly 1% of them trucks, projected to reach 10 by 2039. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCoyote Lane
CrossesSpearfish Ck
Location1.5S Savoy
RouteCounty Highway 0
CountyLawrence County
StateSouth Dakota
Coordinates44.33901, -103.91614
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.3 US tons
Inventory rating32.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic10 by 2039
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Coyote Lane over Spearfish Ck built?

It was built in 2021, making it 4 years old in 2025.

What condition is Coyote Lane over Spearfish Ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Coyote Lane over Spearfish Ck carry?

About 10 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Coyote Lane over Spearfish Ck?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 16 ft wide.

Who owns Coyote Lane over Spearfish Ck?

It is owned by the County Highway Agency.