US Bridges

405th Ave over Fordham Creek

Fair

Spink County, South Dakota · 7.9N & 1W Doland · Structure no. 000000058290161

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
52 ft
3 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

405th Ave over Fordham Creek is a concrete continuous slab carrying 405th Ave over Fordham Creek in Spink County, South Dakota. It was built in 1940, so it is 85 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 5 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 11 vehicles a day, roughly 2% of them trucks, projected to reach 11 by 2032. The structure is 52 ft (15.8 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries405th Ave
CrossesFordham Creek
Location7.9N & 1W Doland
RouteCounty Highway 0
CountySpink County
StateSouth Dakota
Coordinates45.00673, -98.12556
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length52 ft (15.8 m)
Longest span17 ft (5.2 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 405th Ave over Fordham Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 405th Ave over Fordham 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 405th Ave over Fordham Creek carry?

About 11 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 405th Ave over Fordham Creek?

The structure is 52 ft (15.8 m) long with a longest span of 17 ft (5.2 m) and a deck 19 ft wide.

Who owns 405th Ave over Fordham Creek?

It is owned by the County Highway Agency.