US Bridges

Quonset Ave over Drainage

Good

Buchanan County, Iowa · .5 Mi. North of 325th St. · Structure no. 000000000366220

Built
2015
10 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
51
2022 count
Owner
County
County Highway Agency

About this bridge

Quonset Ave over Drainage is a concrete culvert carrying Quonset Ave over Drainage in Buchanan County, Iowa. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 51 vehicles a day, projected to reach 51 by 2044. The structure is 21 ft (6.4 m) long and 47 ft wide.

CarriesQuonset Ave
CrossesDrainage
Location.5 Mi. North of 325th St.
RouteCounty Highway 0
StateIowa
Coordinates42.32583, -91.75914
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span10 ft (3.2 m)
Deck width47 ft (14.3 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2022)
Projected traffic51 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Quonset Ave over Drainage built?

It was built in 2015, making it 10 years old in 2025.

What condition is Quonset Ave over Drainage 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 February 2024.

How much traffic does Quonset Ave over Drainage carry?

About 51 vehicles per day (2022 count).

How long is Quonset Ave over Drainage?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3.2 m) and a deck 47 ft wide.

Who owns Quonset Ave over Drainage?

It is owned by the County Highway Agency.