US Bridges

Farm Entrance over Drainage Ditch(sdb)

PoorPosted for load

Muscatine County, Iowa · 076020702 · Structure no. 000000000257020

Built
1920
105 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
21 ft
1 main span
Daily traffic
10
2022 count
Owner
County
County Highway Agency

About this bridge

Farm Entrance over Drainage Ditch(sdb) is a steel stringer/multi-beam or girder carrying Farm Entrance over Drainage Ditch(sdb) in Muscatine County, Iowa. It was built in 1920, so it is 105 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2043. The structure is 21 ft (6.4 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesFarm Entrance
CrossesDrainage Ditch(sdb)
Location076020702
RouteCounty Highway 0
CountyMuscatine County
StateIowa
Coordinates41.40144, -91.13779
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating11.5 US tons
Inventory rating7.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic10 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$323,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Farm Entrance over Drainage Ditch(sdb) built?

It was built in 1920, making it 105 years old in 2025.

What condition is Farm Entrance over Drainage Ditch(sdb) 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 September 2023.

How much traffic does Farm Entrance over Drainage Ditch(sdb) carry?

About 10 vehicles per day (2022 count).

How long is Farm Entrance over Drainage Ditch(sdb)?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.

Who owns Farm Entrance over Drainage Ditch(sdb)?

It is owned by the County Highway Agency.