US Bridges

330th ST over E Br Wapsinonoc Creek

Fair

Cedar County, Iowa · 079033201 · Structure no. 000000000102011

Built
1996
29 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
35
2021 count
Owner
County
County Highway Agency

About this bridge

330th ST over E Br Wapsinonoc Creek is a steel stringer/multi-beam or girder carrying 330th ST over E Br Wapsinonoc Creek in Cedar County, Iowa. It was built in 1996, so it is 29 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 6 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 35 vehicles a day, projected to reach 35 by 2043. The structure is 46 ft (14 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries330th ST
CrossesE Br Wapsinonoc Creek
Location079033201
RouteCounty Highway 0
CountyCedar County
StateIowa
Coordinates41.61242, -91.22859
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.9 US tons
Inventory rating30.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span45 ft (13.7 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2021)
Projected traffic35 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 330th ST over E Br Wapsinonoc Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is 330th ST over E Br Wapsinonoc Creek 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 May 2023.

How much traffic does 330th ST over E Br Wapsinonoc Creek carry?

About 35 vehicles per day (2021 count).

How long is 330th ST over E Br Wapsinonoc Creek?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 26 ft wide.

Who owns 330th ST over E Br Wapsinonoc Creek?

It is owned by the County Highway Agency.