US Bridges

Moccasin Park RD over White Clay Creek

PoorPosted for load

County 102, South Dakota · 0.36 KM W of SH 407 · Structure no. 00000000000A155

Built
1975
50 years old
Condition
Poor
inspected July 2023
Type
Slab
Wood or Timber
Length
34 ft
1 main span
Daily traffic
50
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

Moccasin Park RD over White Clay Creek is a wood or timber slab carrying Moccasin Park RD over White Clay Creek in County 102, South Dakota. It was built in 1975, so it is 50 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2043. The structure is 34 ft (10.3 m) long and 11 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMoccasin Park RD
CrossesWhite Clay Creek
Location0.36 KM W of SH 407
RouteFederal Lands Road 125
Coordinates43.01261, -102.55877
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating24.8 US tons
Inventory rating18.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length34 ft (10.3 m)
Longest span25 ft (7.5 m)
Deck width11 ft (3.5 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$450,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Moccasin Park RD over White Clay Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Moccasin Park RD over White Clay Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Moccasin Park RD over White Clay Creek carry?

About 50 vehicles per day (2023 count).

How long is Moccasin Park RD over White Clay Creek?

The structure is 34 ft (10.3 m) long with a longest span of 25 ft (7.5 m) and a deck 11 ft wide.

Who owns Moccasin Park RD over White Clay Creek?

It is owned by the Bureau of Indian Affairs.