US Bridges

US385 NF over Fall Rv

Good

Fall River County, South Dakota · 0.1 W JCT US 385 · Structure no. 000000024292032

Built
1982
43 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete Continuous
Length
136 ft
3 main spans
Daily traffic
2,758
2023 count
Owner
State
State Highway Agency

About this bridge

US385 NF over Fall Rv is a concrete continuous slab carrying US385 NF 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 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 2,758 vehicles a day, roughly 4% of them trucks, projected to reach 3,494 by 2043. The structure is 136 ft (41.4 m) long and 75 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS385 NF
CrossesFall Rv
Location0.1 W JCT US 385
RouteU.S. Route 385
Coordinates43.43071, -103.4763
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.9 US tons
Inventory rating47.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length136 ft (41.4 m)
Longest span50 ft (15.2 m)
Deck width75 ft (23 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,758 (2023)
Projected traffic3,494 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 NF over Fall Rv built?

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

What condition is US385 NF over Fall Rv 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 December 2024.

How much traffic does US385 NF over Fall Rv carry?

About 2,758 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US385 NF over Fall Rv?

The structure is 136 ft (41.4 m) long with a longest span of 50 ft (15.2 m) and a deck 75 ft wide.

Who owns US385 NF over Fall Rv?

It is owned by the State Highway Agency.