US Bridges

220th Avenue over Hay Creek

Fair

Corson County, South Dakota · 0.1S Morristown · Structure no. 000000016140011

Built
1977
48 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
70 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

220th Avenue over Hay Creek is a prestressed concrete tee beam carrying 220th Avenue over Hay Creek in Corson 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 100 by 2032. The structure is 70 ft (21.3 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Carries220th Avenue
CrossesHay Creek
Location0.1S Morristown
RouteCounty Highway 0
Coordinates45.93313, -101.72119
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 spans2
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span35 ft (10.7 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic100 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 220th Avenue over Hay Creek built?

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

What condition is 220th Avenue over Hay 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 2024.

How much traffic does 220th Avenue over Hay Creek carry?

About 100 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 220th Avenue over Hay Creek?

The structure is 70 ft (21.3 m) long with a longest span of 35 ft (10.7 m) and a deck 31 ft wide.

Who owns 220th Avenue over Hay Creek?

It is owned by the County Highway Agency.