US Bridges

207th Street over North Deer Ck

Fair

Brookings County, South Dakota · 5N & 3.9W Brookings · Structure no. 000000006131110

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
100 ft
3 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

207th Street over North Deer Ck is a concrete stringer/multi-beam or girder carrying 207th Street over North Deer Ck in Brookings County, South Dakota. It was built in 1977, so it is 48 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 25 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2032. The structure is 100 ft (30.4 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries207th Street
CrossesNorth Deer Ck
Location5N & 3.9W Brookings
RouteCounty Highway 0
Coordinates44.38421, -96.86492
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating32 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length100 ft (30.4 m)
Longest span38 ft (11.5 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 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$2.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 207th Street over North Deer Ck built?

It was built in 1977, making it 48 years old in 2025.

What condition is 207th Street over North Deer Ck 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 September 2024.

How much traffic does 207th Street over North Deer Ck carry?

About 25 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 207th Street over North Deer Ck?

The structure is 100 ft (30.4 m) long with a longest span of 38 ft (11.5 m) and a deck 33 ft wide.

Who owns 207th Street over North Deer Ck?

It is owned by the County Highway Agency.