US Bridges

484th Avenue over Pattee Creek

Fair

Lincoln County, South Dakota · 7.9S & 3E of Canton · Structure no. 000000042200219

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

484th Avenue over Pattee Creek is a prestressed concrete tee beam carrying 484th Avenue over Pattee Creek in Lincoln County, South Dakota. It was built in 1990, so it is 35 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 50 vehicles a day, roughly 2% of them trucks, projected to reach 50 by 2032. The structure is 56 ft (17.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries484th Avenue
CrossesPattee Creek
Location7.9S & 3E of Canton
RouteCounty Highway 0
Coordinates43.18523, -96.52973
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span54 ft (16.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic50 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 484th Avenue over Pattee Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is 484th Avenue over Pattee Creek 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 June 2023.

How much traffic does 484th Avenue over Pattee Creek carry?

About 50 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 484th Avenue over Pattee Creek?

The structure is 56 ft (17.2 m) long with a longest span of 54 ft (16.6 m) and a deck 32 ft wide.

Who owns 484th Avenue over Pattee Creek?

It is owned by the County Highway Agency.