US Bridges

448th Avenue over Creek

Good

Day County, South Dakota · 2.5E & 0.3N of Waubay · Structure no. 000000019358167

Built
1993
32 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
69
2022 count
Owner
County
County Highway Agency

About this bridge

448th Avenue over Creek is a prestressed concrete tee beam carrying 448th Avenue over Creek in Day County, South Dakota. It was built in 1993, so it is 32 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 69 vehicles a day, roughly 2% of them trucks, projected to reach 69 by 2032. The structure is 60 ft (18.3 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries448th Avenue
CrossesCreek
Location2.5E & 0.3N of Waubay
Coordinates45.3469, -97.252
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum 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 + Mod
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69 (2022)
Projected traffic69 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 448th Avenue over Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is 448th Avenue over Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does 448th Avenue over Creek carry?

About 69 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 448th Avenue over Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 34 ft wide.

Who owns 448th Avenue over Creek?

It is owned by the County Highway Agency.