US Bridges

FM 197 Ave over Small Stream

PoorPosted for load

Delaware County, Iowa · 088051506 · Structure no. 000000000140930

Built
1967
58 years old
Condition
Poor
inspected May 2024
Type
Tee Beam
Concrete
Length
26 ft
1 main span
Daily traffic
962
2022 count
Owner
County
County Highway Agency

About this bridge

FM 197 Ave over Small Stream is a concrete tee beam carrying FM 197 Ave over Small Stream in Delaware 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 962 vehicles a day, roughly 14% of them trucks, projected to reach 962 by 2044. The structure is 26 ft (7.9 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM 197 Ave
CrossesSmall Stream
Location088051506
RouteCounty Highway 0
StateIowa
Coordinates42.43161, -91.40794
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width29 ft (8.9 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic962 (2022)
Projected traffic962 by 2044
Trucks14%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 197 Ave over Small Stream built?

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

What condition is FM 197 Ave over Small Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does FM 197 Ave over Small Stream carry?

About 962 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is FM 197 Ave over Small Stream?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.

Who owns FM 197 Ave over Small Stream?

It is owned by the County Highway Agency.