US Bridges

South Market ST over W Br Little Sioux River

Fair

Dickinson County, Iowa · 100382706 · Structure no. 000000000023770

Built
1967
58 years old
Condition
Fair
inspected March 2021
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
2,277
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Market ST over W Br Little Sioux River is a concrete continuous culvert carrying South Market ST over W Br Little Sioux River in Dickinson County, Iowa. It was built in 1967, so it is 58 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 2,277 vehicles a day, projected to reach 2,277 by 2043. The structure is 25 ft (7.6 m) long and 49 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesSouth Market ST
CrossesW Br Little Sioux River
Location100382706
RouteCity Street 0
CountyDickinson County
StateIowa
Coordinates43.44876, -95.32385
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.3 US tons
Inventory rating24.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width49 ft (14.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,277 (2022)
Projected traffic2,277 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$17,000
NavigationNo navigation control on waterway

Frequently asked questions

When was South Market ST over W Br Little Sioux River built?

It was built in 1967, making it 58 years old in 2025.

What condition is South Market ST over W Br Little Sioux River 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 March 2021.

How much traffic does South Market ST over W Br Little Sioux River carry?

About 2,277 vehicles per day (2022 count).

How long is South Market ST over W Br Little Sioux River?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 49 ft wide.

Who owns South Market ST over W Br Little Sioux River?

It is owned by the City or Municipal Highway Agency.