US Bridges

Local over Middle Raccoon River

PoorPosted for load

Carroll County, Iowa · 083343503 · Structure no. 000000000094470

Built
1914
111 years old
Condition
Poor
inspected May 2022
Type
Truss - Thru
Steel
Length
82 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Middle Raccoon River is a steel truss - thru carrying Local over Middle Raccoon River in Carroll County, Iowa. It was built in 1914, so it is 111 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 load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2043. The structure is 82 ft (25 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLocal
CrossesMiddle Raccoon River
Location083343503
RouteCounty Highway 0
StateIowa
Coordinates41.96075, -94.77869
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry8: Equal to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating17.2 US tons
Inventory rating10.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span80 ft (24.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was Local over Middle Raccoon River built?

It was built in 1914, making it 111 years old in 2025.

What condition is Local over Middle Raccoon River 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 2022.

How much traffic does Local over Middle Raccoon River carry?

About 15 vehicles per day (2022 count).

How long is Local over Middle Raccoon River?

The structure is 82 ft (25 m) long with a longest span of 80 ft (24.4 m) and a deck 16 ft wide.

Who owns Local over Middle Raccoon River?

It is owned by the County Highway Agency.