US Bridges

Ia 60 SB over Drainage Ditch

Fair

Osceola County, Iowa · 1.1 Mi. S of SR L36 · Structure no. 000000000038530

Built
1935
90 years old, rebuilt 1986
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
5,100
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 60 SB over Drainage Ditch is a steel stringer/multi-beam or girder carrying Ia 60 SB over Drainage Ditch in Osceola County, Iowa. It was built in 1935 and reconstructed in 1986, so it is 90 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 5 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 5,100 vehicles a day, roughly 31% of them trucks, projected to reach 5,100 by 2044. The structure is 38 ft (11.6 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesIa 60 SB
CrossesDrainage Ditch
Location1.1 Mi. S of SR L36
RouteState Highway 60
CountyOsceola County
StateIowa
Coordinates43.29069, -95.79699
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating31.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span37 ft (11.3 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2022)
Projected traffic5,100 by 2044
Trucks31%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 60 SB over Drainage Ditch built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1986.

What condition is Ia 60 SB over Drainage Ditch 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 2024.

How much traffic does Ia 60 SB over Drainage Ditch carry?

About 5,100 vehicles per day (2022 count), of which roughly 31% are trucks.

How long is Ia 60 SB over Drainage Ditch?

The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 46 ft wide.

Who owns Ia 60 SB over Drainage Ditch?

It is owned by the State Highway Agency.