US Bridges

Homestake Road over Beaver Ck

Good

Lawrence County, South Dakota · 6.5 W 1 N Spearfish · Structure no. 000000041024060

Built
1930
95 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
41 ft
2 main spans
Daily traffic
69
2022 count
Owner
County
County Highway Agency

About this bridge

Homestake Road over Beaver Ck is a wood or timber stringer/multi-beam or girder carrying Homestake Road over Beaver Ck in Lawrence County, South Dakota. It was built in 1930, so it is 95 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 69 vehicles a day, roughly 2% of them trucks, projected to reach 70 by 2032. The structure is 41 ft (12.6 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesHomestake Road
CrossesBeaver Ck
Location6.5 W 1 N Spearfish
RouteCounty Highway 0
Coordinates44.51765, -104.00459
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 geometry5: 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 rating44.2 US tons
Inventory rating32.6 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69 (2022)
Projected traffic70 by 2032
Trucks2%
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Homestake Road over Beaver Ck built?

It was built in 1930, making it 95 years old in 2025.

What condition is Homestake Road over Beaver 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 Homestake Road over Beaver Ck carry?

About 69 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Homestake Road over Beaver Ck?

The structure is 41 ft (12.6 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Homestake Road over Beaver Ck?

It is owned by the County Highway Agency.