US Bridges

South Road over Clear Creek

Good

Allamakee County, Iowa · 097051904 · Structure no. 000000000361691

Built
2017
8 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
121
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Road over Clear Creek is a concrete continuous slab carrying South Road over Clear Creek in Allamakee County, Iowa. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 121 vehicles a day, projected to reach 121 by 2044. The structure is 130 ft (39.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSouth Road
CrossesClear Creek
Location097051904
RouteCity Street 0
StateIowa
Coordinates43.35926, -91.23735
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating58.5 US tons
Inventory rating45.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length130 ft (39.7 m)
Longest span52 ft (15.9 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic121 (2022)
Projected traffic121 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was South Road over Clear Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is South Road over Clear Creek 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 April 2024.

How much traffic does South Road over Clear Creek carry?

About 121 vehicles per day (2022 count).

How long is South Road over Clear Creek?

The structure is 130 ft (39.7 m) long with a longest span of 52 ft (15.9 m) and a deck 31 ft wide.

Who owns South Road over Clear Creek?

It is owned by the City or Municipal Highway Agency.