US Bridges

Local over Big Cedar River

PoorPosted for load

Jefferson County, Iowa · 071092810 · Structure no. 000000000200221

Built
1991
34 years old
Condition
Poor
inspected February 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
122 ft
3 main spans
Daily traffic
34
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Big Cedar River is a steel continuous girder and floorbeam system carrying Local over Big Cedar River in Jefferson County, Iowa. It was built in 1991, so it is 34 years old, younger 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 34 vehicles a day, projected to reach 34 by 2043. The structure is 122 ft (37.2 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLocal
CrossesBig Cedar River
Location071092810
RouteCounty Highway 0
StateIowa
Coordinates40.91582, -91.90067
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating16.9 US tons
Inventory rating14.1 US tons

Structure

MaterialSteel Continuous
DeckWood or timber
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span52 ft (15.9 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2022)
Projected traffic34 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Big Cedar River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Local over Big Cedar 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 February 2023.

How much traffic does Local over Big Cedar River carry?

About 34 vehicles per day (2022 count).

How long is Local over Big Cedar River?

The structure is 122 ft (37.2 m) long with a longest span of 52 ft (15.9 m) and a deck 28 ft wide.

Who owns Local over Big Cedar River?

It is owned by the County Highway Agency.