US Bridges

Western Avenue over Plum Creek

Poor

Fremont County, Iowa · 069430506 · Structure no. 000000000160500

Built
1959
66 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
207 ft
3 main spans
Daily traffic
51
2021 count
Owner
County
County Highway Agency

About this bridge

Western Avenue over Plum Creek is a prestressed concrete stringer/multi-beam or girder carrying Western Avenue over Plum Creek in Fremont County, Iowa. It was built in 1959, so it is 66 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.

It carries about 51 vehicles a day, roughly 99% of them trucks, projected to reach 51 by 2043. The structure is 207 ft (63.1 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesWestern Avenue
CrossesPlum Creek
Location069430506
RouteCounty Highway 0
StateIowa
Coordinates40.81436, -95.80843
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.2 US tons
Inventory rating20 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length207 ft (63.1 m)
Longest span69 ft (21 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2021)
Projected traffic51 by 2043
Trucks99%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Western Avenue over Plum Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Western Avenue over Plum Creek 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 2023.

How much traffic does Western Avenue over Plum Creek carry?

About 51 vehicles per day (2021 count), of which roughly 99% are trucks.

How long is Western Avenue over Plum Creek?

The structure is 207 ft (63.1 m) long with a longest span of 69 ft (21 m) and a deck 26 ft wide.

Who owns Western Avenue over Plum Creek?

It is owned by the County Highway Agency.