US Bridges

Ninth Street over Bear Butte Ck

Good

Meade County, South Dakota · 9th ST - Sturgis · Structure no. 000000047024427

Built
2019
6 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
136 ft
2 main spans
Daily traffic
488
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ninth Street over Bear Butte Ck is a prestressed concrete stringer/multi-beam or girder carrying Ninth Street over Bear Butte Ck in Meade County, South Dakota. It was built in 2019, so it is 6 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 488 vehicles a day, roughly 5% of them trucks, projected to reach 488 by 2032. The structure is 136 ft (41.5 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNinth Street
CrossesBear Butte Ck
Location9th ST - Sturgis
RouteCity Street 0
Coordinates44.41957, -103.52114
Functional classUrban Collector

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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating52.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length136 ft (41.5 m)
Longest span68 ft (20.7 m)
Deck width48 ft (14.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic488 (2022)
Projected traffic488 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Ninth Street over Bear Butte Ck built?

It was built in 2019, making it 6 years old in 2025.

What condition is Ninth Street over Bear Butte 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 Ninth Street over Bear Butte Ck carry?

About 488 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Ninth Street over Bear Butte Ck?

The structure is 136 ft (41.5 m) long with a longest span of 68 ft (20.7 m) and a deck 48 ft wide.

Who owns Ninth Street over Bear Butte Ck?

It is owned by the City or Municipal Highway Agency.