US Bridges

207th Street over Ck

Poor

Brookings County, South Dakota · 10N & 1.9W Elkton · Structure no. 000000006301110

Built
1950
75 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
3 main spans
Daily traffic
65
2022 count
Owner
County
County Highway Agency

About this bridge

207th Street over Ck is a steel stringer/multi-beam or girder carrying 207th Street over Ck in Brookings County, South Dakota. It was built in 1950, so it is 75 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.

It carries about 65 vehicles a day, roughly 2% of them trucks, projected to reach 65 by 2032. The structure is 55 ft (16.9 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries207th Street
CrossesCk
Location10N & 1.9W Elkton
RouteCounty Highway 0
Coordinates44.38367, -96.52259
Functional classRural Minor Collector

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
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.7 US tons
Inventory rating22.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length55 ft (16.9 m)
Longest span19 ft (5.7 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2022)
Projected traffic65 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 207th Street over Ck built?

It was built in 1950, making it 75 years old in 2025.

What condition is 207th Street over Ck 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 2023.

How much traffic does 207th Street over Ck carry?

About 65 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 207th Street over Ck?

The structure is 55 ft (16.9 m) long with a longest span of 19 ft (5.7 m) and a deck 24 ft wide.

Who owns 207th Street over Ck?

It is owned by the County Highway Agency.