US Bridges

455th Avenue over BNSF Railroad

Fair

Roberts County, South Dakota · 0.3S of JCT With US 12 · Structure no. 000000055060424

Built
1940
85 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
170 ft
3 main spans
Daily traffic
2,500
2022 count
Owner
County
County Highway Agency

About this bridge

455th Avenue over BNSF Railroad is a steel stringer/multi-beam or girder carrying 455th Avenue over BNSF Railroad in Roberts County, South Dakota. It was built in 1940, so it is 85 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 fair condition with a lowest component rating of 5 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 2,500 vehicles a day, roughly 3% of them trucks, projected to reach 2,500 by 2032. The structure is 170 ft (51.8 m) long and 33 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
Carries455th Avenue
CrossesBNSF Railroad
Location0.3S of JCT With US 12
RouteCounty Highway 0
CountyRoberts County
StateSouth Dakota
Coordinates45.32056, -97.10331
Functional classRural Major Collector

Condition and inspection

Fair

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

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.5 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length170 ft (51.8 m)
Longest span56 ft (17.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2022)
Projected traffic2,500 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 455th Avenue over BNSF Railroad built?

It was built in 1940, making it 85 years old in 2025.

What condition is 455th Avenue over BNSF Railroad 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 455th Avenue over BNSF Railroad carry?

About 2,500 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 455th Avenue over BNSF Railroad?

The structure is 170 ft (51.8 m) long with a longest span of 56 ft (17.1 m) and a deck 33 ft wide.

Who owns 455th Avenue over BNSF Railroad?

It is owned by the County Highway Agency.