US Bridges

Airport Road over Mill Creek

Fair

Rock Island County, Illinois · 0.5 Mi. E. US 67 · Structure no. 081014800000000

Built
2003
22 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
245 ft
2 main spans
Daily traffic
10,100
2023 count
Owner
State
State Highway Agency

About this bridge

Airport Road over Mill Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Airport Road over Mill Creek in Rock Island County, Illinois. It was built in 2003, so it is 22 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 10,100 vehicles a day, roughly 9% of them trucks, projected to reach 9,393 by 2046. The structure is 245 ft (74.6 m) long and 75 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesAirport Road
CrossesMill Creek
Location0.5 Mi. E. US 67
CountyRock Island County
StateIllinois
Coordinates41.45322, -90.55856
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 rating66.8 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length245 ft (74.6 m)
Longest span122 ft (37.3 m)
Deck width75 ft (22.9 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,100 (2023)
Projected traffic9,393 by 2046
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Airport Road over Mill Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Airport Road over Mill 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 May 2024.

How much traffic does Airport Road over Mill Creek carry?

About 10,100 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Airport Road over Mill Creek?

The structure is 245 ft (74.6 m) long with a longest span of 122 ft (37.3 m) and a deck 75 ft wide.

Who owns Airport Road over Mill Creek?

It is owned by the State Highway Agency.