US Bridges

FM Barnes RD over Small

Fair

Cherokee County, Iowa · 093393004 · Structure no. 000000000109531

Built
1979
46 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

FM Barnes RD over Small is a prestressed concrete tee beam carrying FM Barnes RD over Small in Cherokee County, Iowa. It was built in 1979, so it is 46 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 120 vehicles a day, projected to reach 120 by 2043. The structure is 33 ft (10.1 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesFM Barnes RD
CrossesSmall
Location093393004
RouteCounty Highway 0
CountyCherokee County
StateIowa
Coordinates42.84001, -95.50441
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic120 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM Barnes RD over Small built?

It was built in 1979, making it 46 years old in 2025.

What condition is FM Barnes RD over Small in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does FM Barnes RD over Small carry?

About 120 vehicles per day (2022 count).

How long is FM Barnes RD over Small?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns FM Barnes RD over Small?

It is owned by the County Highway Agency.