US Bridges

Elm Avenue over Drainage Ditch

Poor

Pennington County, South Dakota · 200S Elm & Centennial -Rc · Structure no. 000000052423324

Built
1984
41 years old
Condition
Poor
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
300
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Elm Avenue over Drainage Ditch is a prestressed concrete tee beam carrying Elm Avenue over Drainage Ditch in Pennington County, South Dakota. It was built in 1984, so it is 41 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.

It carries about 300 vehicles a day, roughly 2% of them trucks, projected to reach 300 by 2032. The structure is 26 ft (7.9 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesElm Avenue
CrossesDrainage Ditch
Location200S Elm & Centennial -Rc
RouteCity Street 0
Coordinates44.04778, -103.20655
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width48 ft (14.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic300 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$10,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Elm Avenue over Drainage Ditch built?

It was built in 1984, making it 41 years old in 2025.

What condition is Elm Avenue over Drainage Ditch 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 April 2024.

How much traffic does Elm Avenue over Drainage Ditch carry?

About 300 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Elm Avenue over Drainage Ditch?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 48 ft wide.

Who owns Elm Avenue over Drainage Ditch?

It is owned by the City or Municipal Highway Agency.