US Bridges

E Bennington RD over Wapsipinicon River

PoorClosed to traffic

Black Hawk County, Iowa · 90-11-23-01 · Structure no. 000000000076090

Built
1945
80 years old
Condition
Poor
inspected September 2020
Type
Truss - Thru
Steel
Length
137 ft
1 main span
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

E Bennington RD over Wapsipinicon River is a steel truss - thru carrying E Bennington RD over Wapsipinicon River in Black Hawk County, Iowa. It was built in 1945, so it is 80 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 0 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: closed to all traffic.

It carries about 33 vehicles a day, roughly 24% of them trucks, projected to reach 33 by 2043. The structure is 137 ft (41.8 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesE Bennington RD
CrossesWapsipinicon River
Location90-11-23-01
RouteCounty Highway 0
StateIowa
Coordinates42.59771, -92.11776
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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2020
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+3 approach)
Design loadUnknown
Structure length137 ft (41.8 m)
Longest span80 ft (24.4 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deck13 ft (3.9 m)

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 by 2043
Trucks24%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was E Bennington RD over Wapsipinicon River built?

It was built in 1945, making it 80 years old in 2025.

What condition is E Bennington RD over Wapsipinicon 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 September 2020.

How much traffic does E Bennington RD over Wapsipinicon River carry?

About 33 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is E Bennington RD over Wapsipinicon River?

The structure is 137 ft (41.8 m) long with a longest span of 80 ft (24.4 m) and a deck 17 ft wide.

Who owns E Bennington RD over Wapsipinicon River?

It is owned by the County Highway Agency.