US Bridges

US Rt 150 over Coal Creek

Fair

Rock Island County, Illinois · E Edge Coal Valley · Structure no. 081016500000000

Built
2005
20 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
110 ft
1 main span
Daily traffic
6,000
2023 count
Owner
State
State Highway Agency

About this bridge

US Rt 150 over Coal Creek is a steel stringer/multi-beam or girder carrying US Rt 150 over Coal Creek in Rock Island County, Illinois. It was built in 2005, so it is 20 years old, younger 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 6 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 6,000 vehicles a day, roughly 6% of them trucks, projected to reach 6,010 by 2046. The structure is 110 ft (33.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS Rt 150
CrossesCoal Creek
LocationE Edge Coal Valley
RouteU.S. Route 150
Coordinates41.42815, -90.45738
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating66.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length110 ft (33.6 m)
Longest span108 ft (32.8 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2023)
Projected traffic6,010 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US Rt 150 over Coal Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is US Rt 150 over Coal Creek 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 October 2023.

How much traffic does US Rt 150 over Coal Creek carry?

About 6,000 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US Rt 150 over Coal Creek?

The structure is 110 ft (33.6 m) long with a longest span of 108 ft (32.8 m) and a deck 43 ft wide.

Who owns US Rt 150 over Coal Creek?

It is owned by the State Highway Agency.