US Bridges

Ft Armstrng Av over US67 Missrvr L&D15 Cprr

FairPosted for load

Rock Island County, Illinois · Rock Island Arsenal · Structure no. 000000000819903

Built
1896
129 years old
Condition
Fair
inspected August 2024
Type
Movable - Swing
Steel
Length
1,531 ft
1 main span
Daily traffic
18,000
2020 count
Owner
Federal
Army

About this bridge

Ft Armstrng Av over US67 Missrvr L&D15 Cprr is a steel movable - swing carrying Ft Armstrng Av over US67 Missrvr L&D15 Cprr in Rock Island County, Illinois. It was built in 1896, so it is 129 years old, older than the Illinois average of 45.3 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. Its operating status is: posted for load restriction.

It carries about 18,000 vehicles a day, roughly 2% of them trucks, projected to reach 25,000 by 2046. The structure is 1,531 ft (466.6 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFt Armstrng Av
CrossesUS67 Missrvr L&D15 Cprr
LocationRock Island Arsenal
CountyRock Island County
StateIllinois
Coordinates41.51944, -90.56722
Functional classUrban Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating19.6 US tons
Inventory rating15 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckOpen grating
Main spans1 (+7 approach)
Design loadHS 20
Structure length1,531 ft (466.6 m)
Longest span258 ft (78.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deck11 ft (3.4 m)

Traffic and service

Average daily traffic18,000 (2020)
Projected traffic25,000 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesHighway, waterway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Ft Armstrng Av over US67 Missrvr L&D15 Cprr built?

It was built in 1896, making it 129 years old in 2025.

What condition is Ft Armstrng Av over US67 Missrvr L&D15 Cprr 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 August 2024.

How much traffic does Ft Armstrng Av over US67 Missrvr L&D15 Cprr carry?

About 18,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Ft Armstrng Av over US67 Missrvr L&D15 Cprr?

The structure is 1,531 ft (466.6 m) long with a longest span of 258 ft (78.6 m) and a deck 25 ft wide.

Who owns Ft Armstrng Av over US67 Missrvr L&D15 Cprr?

It is owned by the Army.