US Bridges

3rd ST over US 61 & 151

Good

Dubuque County, Iowa · 0.4 Mi. N. of Jct. US 20 · Structure no. 000000000606255

Built
1991
34 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
724 ft
5 main spans
Daily traffic
2,428
2022 count
Owner
State
State Highway Agency

About this bridge

3rd ST over US 61 & 151 is a steel continuous stringer/multi-beam or girder carrying 3rd ST over US 61 & 151 in Dubuque County, Iowa. It was built in 1991, so it is 34 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 2,428 vehicles a day, projected to reach 2,428 by 2042. The structure is 724 ft (220.7 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries3rd ST
CrossesUS 61 & 151
Location0.4 Mi. N. of Jct. US 20
RouteCity Street 0
CountyDubuque County
StateIowa
Coordinates42.49708, -90.66401
Functional classUrban 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 inspectionNovember 2023
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating69.4 US tons
Inventory rating41.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length724 ft (220.7 m)
Longest span182 ft (55.5 m)
Deck width41 ft (12.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,428 (2022)
Projected traffic2,428 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 3rd ST over US 61 & 151 built?

It was built in 1991, making it 34 years old in 2025.

What condition is 3rd ST over US 61 & 151 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 November 2023.

How much traffic does 3rd ST over US 61 & 151 carry?

About 2,428 vehicles per day (2022 count).

How long is 3rd ST over US 61 & 151?

The structure is 724 ft (220.7 m) long with a longest span of 182 ft (55.5 m) and a deck 41 ft wide.

Who owns 3rd ST over US 61 & 151?

It is owned by the State Highway Agency.