US Bridges

US 6 over Coal Creek

Good

Rock Island County, Illinois · 0.2 Mi. E. of US 150 · Structure no. 081014400000000

Built
1993
32 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
161 ft
4 main spans
Daily traffic
11,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 6 over Coal Creek is a steel continuous stringer/multi-beam or girder carrying US 6 over Coal Creek in Rock Island County, Illinois. It was built in 1993, so it is 32 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 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 11,500 vehicles a day, roughly 4% of them trucks, projected to reach 9,292 by 2046. The structure is 161 ft (49.2 m) long and 73 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 6
CrossesCoal Creek
Location0.2 Mi. E. of US 150
RouteU.S. Route 6
Coordinates41.45281, -90.48187
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length161 ft (49.2 m)
Longest span77 ft (23.5 m)
Deck width73 ft (22.4 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2023)
Projected traffic9,292 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 6 over Coal Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is US 6 over Coal Creek 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 July 2024.

How much traffic does US 6 over Coal Creek carry?

About 11,500 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 6 over Coal Creek?

The structure is 161 ft (49.2 m) long with a longest span of 77 ft (23.5 m) and a deck 73 ft wide.

Who owns US 6 over Coal Creek?

It is owned by the State Highway Agency.