US Bridges

US 20 WB US 52 NB over Y 17 (epworth)

Good

Dubuque County, Iowa · At Jct. of SR Y17 · Structure no. 000000000605860

Built
1988
37 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
171 ft
3 main spans
Daily traffic
6,800
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 WB US 52 NB over Y 17 (epworth) is a prestressed concrete stringer/multi-beam or girder carrying US 20 WB US 52 NB over Y 17 (epworth) in Dubuque County, Iowa. It was built in 1988, so it is 37 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 6,800 vehicles a day, roughly 18% of them trucks, projected to reach 6,800 by 2042. The structure is 171 ft (52.1 m) long and 43 ft wide.

CarriesUS 20 WB US 52 NB
CrossesY 17 (epworth)
LocationAt Jct. of SR Y17
RouteU.S. Route 20
StateIowa
Coordinates42.43943, -90.93162
Functional classRural Principal Arterial - Other

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.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.4 US tons
Inventory rating28.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span77 ft (23.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,800 (2022)
Projected traffic6,800 by 2042
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 US 20 WB US 52 NB over Y 17 (epworth) built?

It was built in 1988, making it 37 years old in 2025.

What condition is US 20 WB US 52 NB over Y 17 (epworth) 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 2023.

How much traffic does US 20 WB US 52 NB over Y 17 (epworth) carry?

About 6,800 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is US 20 WB US 52 NB over Y 17 (epworth)?

The structure is 171 ft (52.1 m) long with a longest span of 77 ft (23.5 m) and a deck 43 ft wide.

Who owns US 20 WB US 52 NB over Y 17 (epworth)?

It is owned by the State Highway Agency.