US Bridges

47850 299th ST over East Brule Ck

Fair

Union County, South Dakota · 2N & 0.5W Alcester · Structure no. 000000064085020

Built
1930
95 years old, rebuilt 1976
Condition
Fair
inspected August 2024
Type
Channel Beam
Concrete
Length
72 ft
2 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

47850 299th ST over East Brule Ck is a concrete channel beam carrying 47850 299th ST over East Brule Ck in Union County, South Dakota. It was built in 1930 and reconstructed in 1976, so it is 95 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 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 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 72 ft (22 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries47850 299th ST
CrossesEast Brule Ck
Location2N & 0.5W Alcester
RouteCounty Highway 0
Coordinates43.05473, -96.63808
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length72 ft (22 m)
Longest span35 ft (10.7 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 47850 299th ST over East Brule Ck built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1976.

What condition is 47850 299th ST over East Brule 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 August 2024.

How much traffic does 47850 299th ST over East Brule Ck carry?

About 45 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 47850 299th ST over East Brule Ck?

The structure is 72 ft (22 m) long with a longest span of 35 ft (10.7 m) and a deck 26 ft wide.

Who owns 47850 299th ST over East Brule Ck?

It is owned by the County Highway Agency.