US Bridges

419th Avenue over Creek

PoorPosted for load

Clark County, South Dakota · 8.4N & 4.0E of Carpenter · Structure no. 000000013070276

Built
1983
42 years old
Condition
Poor
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
39
2022 count
Owner
County
County Highway Agency

About this bridge

419th Avenue over Creek is a prestressed concrete tee beam carrying 419th Avenue over Creek in Clark County, South Dakota. It was built in 1983, so it is 42 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 39 vehicles a day, roughly 2% of them trucks, projected to reach 39 by 2032. The structure is 30 ft (9.1 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries419th Avenue
CrossesCreek
Location8.4N & 4.0E of Carpenter
Coordinates44.75333, -97.83644
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)
Projected traffic39 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$654,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 419th Avenue over Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is 419th Avenue over Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does 419th Avenue over Creek carry?

About 39 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 419th Avenue over Creek?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 27 ft wide.

Who owns 419th Avenue over Creek?

It is owned by the County Highway Agency.