US Bridges

US014A over Deadwood Ck

Good

Lawrence County, South Dakota · 2 N JCT US 85 · Structure no. 000000041141164

Built
2019
6 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
53 ft
2 main spans
Daily traffic
8,091
2024 count
Owner
State
State Highway Agency

About this bridge

US014A over Deadwood Ck is a concrete continuous culvert carrying US014A over Deadwood Ck in Lawrence 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 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 8,091 vehicles a day, roughly 8% of them trucks, projected to reach 11,724 by 2044. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS014A
CrossesDeadwood Ck
Location2 N JCT US 85
RouteU.S. Route 14
Coordinates44.3676, -103.7686
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating78.9 US tons
Inventory rating61.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length53 ft (16.2 m)
Longest span26 ft (7.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,091 (2024)
Projected traffic11,724 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US014A over Deadwood Ck built?

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

What condition is US014A over Deadwood 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 January 2024.

How much traffic does US014A over Deadwood Ck carry?

About 8,091 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is US014A over Deadwood Ck?

The structure is 53 ft (16.2 m) long with a longest span of 26 ft (7.8 m).

Who owns US014A over Deadwood Ck?

It is owned by the State Highway Agency.