US Bridges

P59 (quail Ave) over US 20

Good

Webster County, Iowa · 3.1 Mi. E of US 169 · Structure no. 000000000605748

Built
1990
35 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
353 ft
4 main spans
Daily traffic
5,485
2022 count
Owner
State
State Highway Agency

About this bridge

P59 (quail Ave) over US 20 is a steel continuous stringer/multi-beam or girder carrying P59 (quail Ave) over US 20 in Webster County, Iowa. It was built in 1990, so it is 35 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 5,485 vehicles a day, roughly 9% of them trucks, projected to reach 5,485 by 2044. The structure is 353 ft (107.6 m) long and 63 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesP59 (quail Ave)
CrossesUS 20
Location3.1 Mi. E of US 169
RouteCounty Highway 0
CountyWebster County
StateIowa
Coordinates42.45049, -94.12408
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 inspectionMay 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 rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length353 ft (107.6 m)
Longest span117 ft (35.7 m)
Deck width63 ft (19.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,485 (2022)
Projected traffic5,485 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed8.1 mi (13 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 P59 (quail Ave) over US 20 built?

It was built in 1990, making it 35 years old in 2025.

What condition is P59 (quail Ave) over US 20 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 May 2024.

How much traffic does P59 (quail Ave) over US 20 carry?

About 5,485 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is P59 (quail Ave) over US 20?

The structure is 353 ft (107.6 m) long with a longest span of 117 ft (35.7 m) and a deck 63 ft wide.

Who owns P59 (quail Ave) over US 20?

It is owned by the State Highway Agency.