US Bridges

W State ST over Drainage

Poor

Marshall County, Iowa · 084182701 · Structure no. 000000000007860

Built
1900
125 years old
Condition
Poor
inspected July 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
472
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

W State ST over Drainage is a concrete continuous culvert carrying W State ST over Drainage in Marshall County, Iowa. It was built in 1900, so it is 125 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.

It carries about 472 vehicles a day, projected to reach 472 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesW State ST
CrossesDrainage
Location084182701
RouteCity Street 0
CountyMarshall County
StateIowa
Coordinates42.0503, -92.93795
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.6 US tons
Inventory rating18.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic472 (2022)
Projected traffic472 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$495 million
NavigationNo navigation control on waterway

Frequently asked questions

When was W State ST over Drainage built?

It was built in 1900, making it 125 years old in 2025.

What condition is W State ST over Drainage 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 July 2023.

How much traffic does W State ST over Drainage carry?

About 472 vehicles per day (2022 count).

How long is W State ST over Drainage?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns W State ST over Drainage?

It is owned by the City or Municipal Highway Agency.