US Bridges

Nest Avenue over Ia 60

Good

O'Brien County, Iowa · 1.6 Mi. S of Jct. US 18 · Structure no. 000000000608910

Built
2004
21 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
285 ft
2 main spans
Daily traffic
259
2022 count
Owner
State
State Highway Agency

About this bridge

Nest Avenue over Ia 60 is a prestressed concrete stringer/multi-beam or girder carrying Nest Avenue over Ia 60 in O'Brien County, Iowa. It was built in 2004, so it is 21 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 259 vehicles a day, roughly 5% of them trucks, projected to reach 259 by 2044. The structure is 285 ft (86.9 m) long and 48 ft wide.

CarriesNest Avenue
CrossesIa 60
Location1.6 Mi. S of Jct. US 18
RouteCounty Highway 0
StateIowa
Coordinates43.16483, -95.82198
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.3 US tons
Inventory rating40.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length285 ft (86.9 m)
Longest span141 ft (43 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic259 (2022)
Projected traffic259 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Nest Avenue over Ia 60 built?

It was built in 2004, making it 21 years old in 2025.

What condition is Nest Avenue over Ia 60 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 January 2024.

How much traffic does Nest Avenue over Ia 60 carry?

About 259 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Nest Avenue over Ia 60?

The structure is 285 ft (86.9 m) long with a longest span of 141 ft (43 m) and a deck 48 ft wide.

Who owns Nest Avenue over Ia 60?

It is owned by the State Highway Agency.