US Bridges

Local over Big Cedar CR Dd 181

PoorClosed to traffic

Calhoun County, Iowa · 089340401 · Structure no. 000000000092750

Built
1900
125 years old, rebuilt 1960
Condition
Poor
inspected July 2023
Type
Truss - Thru
Steel
Length
93 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Big Cedar CR Dd 181 is a steel truss - thru carrying Local over Big Cedar CR Dd 181 in Calhoun County, Iowa. It was built in 1900 and reconstructed in 1960, so it is 125 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 15 vehicles a day, projected to reach 15 by 2043. The structure is 93 ft (28.3 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal
CrossesBig Cedar CR Dd 181
Location089340401
RouteCounty Highway 0
CountyCalhoun County
StateIowa
Coordinates42.56009, -94.86458
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length93 ft (28.3 m)
Longest span50 ft (15.2 m)
Deck width16 ft (4.8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Big Cedar CR Dd 181 built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1960.

What condition is Local over Big Cedar CR Dd 181 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 July 2023.

How much traffic does Local over Big Cedar CR Dd 181 carry?

About 15 vehicles per day (2022 count).

How long is Local over Big Cedar CR Dd 181?

The structure is 93 ft (28.3 m) long with a longest span of 50 ft (15.2 m) and a deck 16 ft wide.

Who owns Local over Big Cedar CR Dd 181?

It is owned by the County Highway Agency.