US Bridges

FAS 1488/OLD Rt 66 over Timber Creek

Fair

McLean County, Illinois · 4.5 MI NE of US 136 · Structure no. 057024300000000

Built
2015
10 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
134 ft
1 main span
Daily traffic
1,250
2024 count
Owner
State
State Highway Agency

About this bridge

FAS 1488/OLD Rt 66 over Timber Creek is a steel stringer/multi-beam or girder carrying FAS 1488/OLD Rt 66 over Timber Creek in McLean County, Illinois. It was built in 2015, so it is 10 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 1,250 vehicles a day, roughly 11% of them trucks, projected to reach 556 by 2046. The structure is 134 ft (40.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFAS 1488/OLD Rt 66
CrossesTimber Creek
Location4.5 MI NE of US 136
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.36169, -89.11371
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 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 rating84.7 US tons
Inventory rating65.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length134 ft (40.8 m)
Longest span130 ft (39.7 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2024)
Projected traffic556 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 FAS 1488/OLD Rt 66 over Timber Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is FAS 1488/OLD Rt 66 over Timber 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 March 2024.

How much traffic does FAS 1488/OLD Rt 66 over Timber Creek carry?

About 1,250 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is FAS 1488/OLD Rt 66 over Timber Creek?

The structure is 134 ft (40.8 m) long with a longest span of 130 ft (39.7 m) and a deck 35 ft wide.

Who owns FAS 1488/OLD Rt 66 over Timber Creek?

It is owned by the State Highway Agency.