US Bridges

S.2nd ST over W Br Little Sioux River

Good

Dickinson County, Iowa · 100382706 · Structure no. 000000000006961

Built
2009
16 years old
Condition
Good
inspected March 2024
Type
Arch - Deck
Concrete
Length
56 ft
1 main span
Daily traffic
50
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

S.2nd ST over W Br Little Sioux River is a concrete arch - deck carrying S.2nd ST over W Br Little Sioux River in Dickinson County, Iowa. It was built in 2009, so it is 16 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 50 by 2044. The structure is 56 ft (17.1 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS.2nd ST
CrossesW Br Little Sioux River
Location100382706
RouteCity Street 0
StateIowa
Coordinates43.44856, -95.32634
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating41.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span54 ft (16.5 m)
Deck width27 ft (8.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic50 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was S.2nd ST over W Br Little Sioux River built?

It was built in 2009, making it 16 years old in 2025.

What condition is S.2nd ST over W Br Little Sioux River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does S.2nd ST over W Br Little Sioux River carry?

About 50 vehicles per day (2022 count).

How long is S.2nd ST over W Br Little Sioux River?

The structure is 56 ft (17.1 m) long with a longest span of 54 ft (16.5 m) and a deck 27 ft wide.

Who owns S.2nd ST over W Br Little Sioux River?

It is owned by the City or Municipal Highway Agency.