US Bridges

469th Avenue over Harem Creek

Fair

Lincoln County, South Dakota · 10.5S & 3E of Lennox · Structure no. 000000042050215

Built
1947
78 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
135
2022 count
Owner
County
County Highway Agency

About this bridge

469th Avenue over Harem Creek is a concrete continuous slab carrying 469th Avenue over Harem Creek in Lincoln County, South Dakota. It was built in 1947, so it is 78 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 135 vehicles a day, roughly 2% of them trucks, projected to reach 135 by 2032. The structure is 35 ft (10.7 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries469th Avenue
CrossesHarem Creek
Location10.5S & 3E of Lennox
RouteCounty Highway 0
Coordinates43.19366, -96.82574
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span17 ft (5.1 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135 (2022)
Projected traffic135 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 469th Avenue over Harem Creek built?

It was built in 1947, making it 78 years old in 2025.

What condition is 469th Avenue over Harem 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 May 2023.

How much traffic does 469th Avenue over Harem Creek carry?

About 135 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 469th Avenue over Harem Creek?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.1 m) and a deck 27 ft wide.

Who owns 469th Avenue over Harem Creek?

It is owned by the County Highway Agency.