US Bridges

I-74 NB Wb(nb) over 12th Ave-Moline

Good

Rock Island County, Illinois · 0.7 MI N of 23rd Ave · Structure no. 081018200000000

Built
2019
6 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
82 ft
1 main span
Daily traffic
25,800
2023 count
Owner
State
State Highway Agency

About this bridge

I-74 NB Wb(nb) over 12th Ave-Moline is a steel stringer/multi-beam or girder carrying I-74 NB Wb(nb) over 12th Ave-Moline in Rock Island County, Illinois. It was built in 2019, so it is 6 years old, younger than the Illinois average of 45.3 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 25,800 vehicles a day, roughly 5% of them trucks, projected to reach 26,765 by 2046. The structure is 82 ft (25 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-74 NB Wb(nb)
Crosses12th Ave-Moline
Location0.7 MI N of 23rd Ave
RouteInterstate 74
CountyRock Island County
StateIllinois
Coordinates41.50032, -90.50797
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length82 ft (25 m)
Longest span75 ft (22.9 m)
Deck width75 ft (23 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,800 (2023)
Projected traffic26,765 by 2046
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-74 NB Wb(nb) over 12th Ave-Moline built?

It was built in 2019, making it 6 years old in 2025.

What condition is I-74 NB Wb(nb) over 12th Ave-Moline 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 January 2024.

How much traffic does I-74 NB Wb(nb) over 12th Ave-Moline carry?

About 25,800 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is I-74 NB Wb(nb) over 12th Ave-Moline?

The structure is 82 ft (25 m) long with a longest span of 75 ft (22.9 m) and a deck 75 ft wide.

Who owns I-74 NB Wb(nb) over 12th Ave-Moline?

It is owned by the State Highway Agency.