US Bridges

197th ST over Small

Good

Clinton County, Iowa · 082E42407 · Structure no. 000000000123811

Built
1980
45 years old, rebuilt 2000
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
26
2022 count
Owner
County
County Highway Agency

About this bridge

197th ST over Small is a prestressed concrete tee beam carrying 197th ST over Small in Clinton County, Iowa. It was built in 1980 and reconstructed in 2000, so it is 45 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 26 vehicles a day, projected to reach 26 by 2044. The structure is 40 ft (12.2 m) long and 25 ft wide.

Carries197th ST
CrossesSmall
Location082E42407
RouteCounty Highway 0
StateIowa
Coordinates41.89162, -90.43324
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.2 US tons
Inventory rating40.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 197th ST over Small built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2000.

What condition is 197th ST over Small 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 197th ST over Small carry?

About 26 vehicles per day (2022 count).

How long is 197th ST over Small?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 25 ft wide.

Who owns 197th ST over Small?

It is owned by the County Highway Agency.