US Bridges

Airport Road over Case Creek

Fair

Rock Island County, Illinois · 0.8 Mi. E. of I-280 · Structure no. 081014500000000

Built
2005
20 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
118 ft
2 main spans
Daily traffic
4,150
2020 count
Owner
State
State Highway Agency

About this bridge

Airport Road over Case Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Airport Road over Case 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 4,150 vehicles a day, roughly 9% of them trucks, projected to reach 4,192 by 2046. The structure is 118 ft (36.1 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAirport Road
CrossesCase Creek
Location0.8 Mi. E. of I-280
CountyRock Island County
StateIllinois
Coordinates41.45308, -90.53265
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 inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length118 ft (36.1 m)
Longest span57 ft (17.4 m)
Deck width69 ft (21.1 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,150 (2020)
Projected traffic4,192 by 2046
Trucks9%
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 Airport Road over Case Creek built?

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

What condition is Airport Road over Case 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 June 2024.

How much traffic does Airport Road over Case Creek carry?

About 4,150 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Airport Road over Case Creek?

The structure is 118 ft (36.1 m) long with a longest span of 57 ft (17.4 m) and a deck 69 ft wide.

Who owns Airport Road over Case Creek?

It is owned by the State Highway Agency.