US Bridges

Ia 141 over Garretson Ditch

Good

Woodbury County, Iowa · 6.4 Mi. E of I-29 · Structure no. 000000000053251

Built
2018
7 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
138 ft
3 main spans
Daily traffic
2,130
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 141 over Garretson Ditch is a concrete continuous slab carrying Ia 141 over Garretson Ditch in Woodbury County, Iowa. It was built in 2018, so it is 7 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,130 vehicles a day, roughly 13% of them trucks, projected to reach 2,130 by 2044. The structure is 138 ft (42 m) long and 47 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesIa 141
CrossesGarretson Ditch
Location6.4 Mi. E of I-29
RouteState Highway 141
StateIowa
Coordinates42.2274, -96.11567
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length138 ft (42 m)
Longest span60 ft (18.2 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,130 (2022)
Projected traffic2,130 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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 141 over Garretson Ditch built?

It was built in 2018, making it 7 years old in 2025.

What condition is Ia 141 over Garretson Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Ia 141 over Garretson Ditch carry?

About 2,130 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Ia 141 over Garretson Ditch?

The structure is 138 ft (42 m) long with a longest span of 60 ft (18.2 m) and a deck 47 ft wide.

Who owns Ia 141 over Garretson Ditch?

It is owned by the State Highway Agency.