US Bridges

4th ST over Fleener Creek

PoorPosted for load

Poweshiek County, Iowa · 078160901 · Structure no. 000000000010215

Built
1917
108 years old
Condition
Poor
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
181
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

4th ST over Fleener Creek is a steel stringer/multi-beam or girder carrying 4th ST over Fleener Creek in Poweshiek County, Iowa. It was built in 1917, so it is 108 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 3 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 181 vehicles a day, projected to reach 181 by 2043. The structure is 25 ft (7.6 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries4th ST
CrossesFleener Creek
Location078160901
RouteCity Street 0
StateIowa
Coordinates41.58136, -92.70867
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating9.9 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span22 ft (6.7 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic181 (2022)
Projected traffic181 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$485,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 4th ST over Fleener Creek built?

It was built in 1917, making it 108 years old in 2025.

What condition is 4th ST over Fleener 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 December 2023.

How much traffic does 4th ST over Fleener Creek carry?

About 181 vehicles per day (2022 count).

How long is 4th ST over Fleener Creek?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m) and a deck 22 ft wide.

Who owns 4th ST over Fleener Creek?

It is owned by the City or Municipal Highway Agency.