US Bridges

US018 over Burlington Nor RR CO RD

Fair

Fall River County, South Dakota · NE Edge of Edgemont · Structure no. 000000024116116

Built
1978
47 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
4 main spans
Daily traffic
2,568
2024 count
Owner
State
State Highway Agency

About this bridge

US018 over Burlington Nor RR CO RD is a steel continuous stringer/multi-beam or girder carrying US018 over Burlington Nor RR CO RD in Fall River County, South Dakota. It was built in 1978, so it is 47 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 2,568 vehicles a day, roughly 17% of them trucks, projected to reach 3,816 by 2044. The structure is 260 ft (79.2 m) long and 47 ft wide.

CarriesUS018
CrossesBurlington Nor RR CO RD
LocationNE Edge of Edgemont
RouteU.S. Route 18
Coordinates43.31048, -103.8242
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.5 US tons
Inventory rating43.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length260 ft (79.2 m)
Longest span80 ft (24.4 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,568 (2024)
Projected traffic3,816 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US018 over Burlington Nor RR CO RD built?

It was built in 1978, making it 47 years old in 2025.

What condition is US018 over Burlington Nor RR CO RD 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 August 2024.

How much traffic does US018 over Burlington Nor RR CO RD carry?

About 2,568 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is US018 over Burlington Nor RR CO RD?

The structure is 260 ft (79.2 m) long with a longest span of 80 ft (24.4 m) and a deck 47 ft wide.

Who owns US018 over Burlington Nor RR CO RD?

It is owned by the State Highway Agency.