US Bridges

207th Street over North Deer Ck

PoorPosted for load

Brookings County, South Dakota · 5N & 1.3W Brookings · Structure no. 000000006157110

Built
1958
67 years old
Condition
Poor
inspected September 2024
Type
Channel Beam
Concrete
Length
50 ft
2 main spans
Daily traffic
32
2022 count
Owner
County
County Highway Agency

About this bridge

207th Street over North Deer Ck is a concrete channel beam carrying 207th Street over North Deer Ck in Brookings County, South Dakota. It was built in 1958, so it is 67 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 32 vehicles a day, roughly 2% of them trucks, projected to reach 32 by 2032. The structure is 50 ft (15.3 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries207th Street
CrossesNorth Deer Ck
Location5N & 1.3W Brookings
RouteCounty Highway 0
Coordinates44.38409, -96.81495
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29 US tons
Inventory rating14 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length50 ft (15.3 m)
Longest span24 ft (7.4 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32 (2022)
Projected traffic32 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$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 207th Street over North Deer Ck built?

It was built in 1958, making it 67 years old in 2025.

What condition is 207th Street over North Deer 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 2024.

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

About 32 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 207th Street over North Deer Ck?

The structure is 50 ft (15.3 m) long with a longest span of 24 ft (7.4 m) and a deck 26 ft wide.

Who owns 207th Street over North Deer Ck?

It is owned by the County Highway Agency.