US Bridges

US385 over Fall Rv

Fair

Fall River County, South Dakota · 0.8 N JCT US 18 W · Structure no. 000000024292026

Built
1982
43 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
111 ft
2 main spans
Daily traffic
3,708
2024 count
Owner
State
State Highway Agency

About this bridge

US385 over Fall Rv is a concrete continuous slab carrying US385 over Fall Rv in Fall River County, South Dakota. It was built in 1982, so it is 43 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,708 vehicles a day, roughly 4% of them trucks, projected to reach 5,510 by 2044. The structure is 111 ft (33.8 m) long and 60 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS385
CrossesFall Rv
Location0.8 N JCT US 18 W
RouteU.S. Route 385
Coordinates43.44054, -103.47853
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating76.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length111 ft (33.8 m)
Longest span52 ft (15.7 m)
Deck width60 ft (18.4 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,708 (2024)
Projected traffic5,510 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 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 US385 over Fall Rv built?

It was built in 1982, making it 43 years old in 2025.

What condition is US385 over Fall Rv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.

How much traffic does US385 over Fall Rv carry?

About 3,708 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is US385 over Fall Rv?

The structure is 111 ft (33.8 m) long with a longest span of 52 ft (15.7 m) and a deck 60 ft wide.

Who owns US385 over Fall Rv?

It is owned by the State Highway Agency.