US Bridges

E Anson ST over Anson Creek

Fair

Marshall County, Iowa · 084183601 · Structure no. 000000000007791

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
3,603
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

E Anson ST over Anson Creek is a concrete continuous culvert carrying E Anson ST over Anson Creek in Marshall County, Iowa. It was built in 1976, so it is 49 years old, older 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 3,603 vehicles a day, projected to reach 3,603 by 2043. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesE Anson ST
CrossesAnson Creek
Location084183601
RouteCity Street 0
CountyMarshall County
StateIowa
Coordinates42.03824, -92.9027
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,603 (2022)
Projected traffic3,603 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$17,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E Anson ST over Anson Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is E Anson ST over Anson 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 July 2023.

How much traffic does E Anson ST over Anson Creek carry?

About 3,603 vehicles per day (2022 count).

How long is E Anson ST over Anson Creek?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns E Anson ST over Anson Creek?

It is owned by the City or Municipal Highway Agency.