US Bridges

FM V-66 over I-80

Good

Iowa County, Iowa · 3.0 Mi. W of Jct. Ia 149 · Structure no. 000000000029810

Built
1963
62 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
227 ft
4 main spans
Daily traffic
3,810
2022 count
Owner
State
State Highway Agency

About this bridge

FM V-66 over I-80 is a prestressed concrete stringer/multi-beam or girder carrying FM V-66 over I-80 in Iowa County, Iowa. It was built in 1963, so it is 62 years old, older 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 3,810 vehicles a day, roughly 8% of them trucks, projected to reach 3,810 by 2044. The structure is 227 ft (69.2 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM V-66
CrossesI-80
Location3.0 Mi. W of Jct. Ia 149
RouteCounty Highway 0
StateIowa
Coordinates41.68853, -92.06622
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.3 US tons
Inventory rating45.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length227 ft (69.2 m)
Longest span69 ft (21 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,810 (2022)
Projected traffic3,810 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM V-66 over I-80 built?

It was built in 1963, making it 62 years old in 2025.

What condition is FM V-66 over I-80 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 June 2024.

How much traffic does FM V-66 over I-80 carry?

About 3,810 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is FM V-66 over I-80?

The structure is 227 ft (69.2 m) long with a longest span of 69 ft (21 m) and a deck 34 ft wide.

Who owns FM V-66 over I-80?

It is owned by the State Highway Agency.