US Bridges

197th ST over Small Stream

Good

Delaware County, Iowa · 197th Ave 50 N of 295th · Structure no. 000000000139791

Built
2015
10 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
44
2022 count
Owner
County
County Highway Agency

About this bridge

197th ST over Small Stream is a concrete continuous slab carrying 197th ST over Small Stream in Delaware County, Iowa. It was built in 2015, so it is 10 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 44 vehicles a day, projected to reach 44 by 2043. The structure is 100 ft (30.5 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries197th ST
CrossesSmall Stream
Location197th Ave 50 N of 295th
RouteCounty Highway 0
CountyDelaware County
StateIowa
Coordinates42.36335, -91.4079
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length100 ft (30.5 m)
Longest span39 ft (11.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2022)
Projected traffic44 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 Stream built?

It was built in 2015, making it 10 years old in 2025.

What condition is 197th ST over Small Stream 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 May 2023.

How much traffic does 197th ST over Small Stream carry?

About 44 vehicles per day (2022 count).

How long is 197th ST over Small Stream?

The structure is 100 ft (30.5 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.

Who owns 197th ST over Small Stream?

It is owned by the County Highway Agency.