US Bridges

45530 273 ST over East Fork Vermillion Rv

PoorPosted for load

Turner County, South Dakota · 2N & 2.3E Parker · Structure no. 000000063153050

Built
1910
115 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
92 ft
1 main span
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

45530 273 ST over East Fork Vermillion Rv is a steel truss - thru carrying 45530 273 ST over East Fork Vermillion Rv in Turner County, South Dakota. It was built in 1910, so it is 115 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 load restriction.

It carries about 30 vehicles a day, roughly 2% of them trucks, projected to reach 30 by 2032. The structure is 92 ft (27.9 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries45530 273 ST
CrossesEast Fork Vermillion Rv
Location2N & 2.3E Parker
RouteCounty Highway 0
Coordinates43.43077, -97.09434
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 rating5 US tons
Inventory rating5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length92 ft (27.9 m)
Longest span90 ft (27.4 m)
Deck width16 ft (4.9 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic30 by 2032
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$681,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 45530 273 ST over East Fork Vermillion Rv built?

It was built in 1910, making it 115 years old in 2025.

What condition is 45530 273 ST over East Fork Vermillion Rv 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 September 2024.

How much traffic does 45530 273 ST over East Fork Vermillion Rv carry?

About 30 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 45530 273 ST over East Fork Vermillion Rv?

The structure is 92 ft (27.9 m) long with a longest span of 90 ft (27.4 m) and a deck 16 ft wide.

Who owns 45530 273 ST over East Fork Vermillion Rv?

It is owned by the County Highway Agency.