US Bridges

US 61 & 151 over Peosta Chl & City ST

Fair

Dubuque County, Iowa · 0.2 Mi. N. of E 11th St. · Structure no. 000000000606260

Built
1991
34 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
4,030 ft
20 main spans
Daily traffic
22,300
2022 count
Owner
State
State Highway Agency

About this bridge

US 61 & 151 over Peosta Chl & City ST is a steel continuous stringer/multi-beam or girder carrying US 61 & 151 over Peosta Chl & City ST 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 22,300 vehicles a day, roughly 17% of them trucks, projected to reach 22,300 by 2043. The structure is 4,030 ft (1,228.3 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 61 & 151
CrossesPeosta Chl & City ST
Location0.2 Mi. N. of E 11th St.
RouteU.S. Route 61
CountyDubuque County
StateIowa
Coordinates42.50825, -90.65929
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.2 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans20
Design loadHS 20
Structure length4,030 ft (1,228.3 m)
Longest span258 ft (78.6 m)
Deck width80 ft (24.4 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,300 (2022)
Projected traffic22,300 by 2043
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 61 & 151 over Peosta Chl & City ST built?

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

What condition is US 61 & 151 over Peosta Chl & City ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does US 61 & 151 over Peosta Chl & City ST carry?

About 22,300 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is US 61 & 151 over Peosta Chl & City ST?

The structure is 4,030 ft (1,228.3 m) long with a longest span of 258 ft (78.6 m) and a deck 80 ft wide.

Who owns US 61 & 151 over Peosta Chl & City ST?

It is owned by the State Highway Agency.