US Bridges

SR 160 TH ST over Drainage

Fair

Franklin County, Iowa · 092222503 · Structure no. 000000000365160

Built
1971
54 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
62
2022 count
Owner
County
County Highway Agency

About this bridge

SR 160 TH ST over Drainage is a concrete continuous culvert carrying SR 160 TH ST over Drainage in Franklin County, Iowa. It was built in 1971, so it is 54 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 62 vehicles a day, projected to reach 62 by 2044. The structure is 22 ft (6.6 m) long and 143 ft wide.

CarriesSR 160 TH ST
CrossesDrainage
Location092222503
RouteCounty Highway 0
StateIowa
Coordinates42.76001, -93.38682
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span10 ft (3.2 m)
Deck width143 ft (43.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62 (2022)
Projected traffic62 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 160 TH ST over Drainage built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR 160 TH ST over Drainage 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 June 2024.

How much traffic does SR 160 TH ST over Drainage carry?

About 62 vehicles per day (2022 count).

How long is SR 160 TH ST over Drainage?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.2 m) and a deck 143 ft wide.

Who owns SR 160 TH ST over Drainage?

It is owned by the County Highway Agency.