US Bridges

4th Ave over Brushy Fork

Fair

Carroll County, Iowa · 000000000 · Structure no. 000000000003601

Built
1986
39 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
1,018
2022 count
Owner
County
County Highway Agency

About this bridge

4th Ave over Brushy Fork is a concrete continuous slab carrying 4th Ave over Brushy Fork in Carroll County, Iowa. It was built in 1986, so it is 39 years old, younger 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 1,018 vehicles a day, roughly 14% of them trucks, projected to reach 1,018 by 2044. The structure is 128 ft (39 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries4th Ave
CrossesBrushy Fork
Location000000000
RouteCity Street 0
CountyCarroll County
StateIowa
Coordinates41.91269, -94.82213
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,018 (2022)
Projected traffic1,018 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 4th Ave over Brushy Fork built?

It was built in 1986, making it 39 years old in 2025.

What condition is 4th Ave over Brushy Fork 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 March 2024.

How much traffic does 4th Ave over Brushy Fork carry?

About 1,018 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is 4th Ave over Brushy Fork?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns 4th Ave over Brushy Fork?

It is owned by the County Highway Agency.