US Bridges

Local over Trib to Spring Creek

PoorPosted for load

Wapello County, Iowa · 073130501 · Structure no. 000000000332020

Built
1950
75 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
21 ft
1 main span
Daily traffic
5
2021 count
Owner
County
County Highway Agency

About this bridge

Local over Trib to Spring Creek is a wood or timber stringer/multi-beam or girder carrying Local over Trib to Spring Creek in Wapello County, Iowa. It was built in 1950, so it is 75 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 5 vehicles a day, projected to reach 5 by 2044. The structure is 21 ft (6.4 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLocal
CrossesTrib to Spring Creek
Location073130501
RouteCounty Highway 0
StateIowa
Coordinates41.16205, -92.3785
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.1 US tons
Inventory rating12.2 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span18 ft (5.5 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2021)
Projected traffic5 by 2044
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$317,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Trib to Spring Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Local over Trib to Spring 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 2024.

How much traffic does Local over Trib to Spring Creek carry?

About 5 vehicles per day (2021 count).

How long is Local over Trib to Spring Creek?

The structure is 21 ft (6.4 m) long with a longest span of 18 ft (5.5 m) and a deck 16 ft wide.

Who owns Local over Trib to Spring Creek?

It is owned by the County Highway Agency.