US Bridges

FAS 1663 over Lake Shelbyville

Fair

Moultrie County, Illinois · 2 MI S Kirksville · Structure no. 070300800000000

Built
1969
56 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,172 ft
16 main spans
Daily traffic
500
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

FAS 1663 over Lake Shelbyville is a prestressed concrete stringer/multi-beam or girder carrying FAS 1663 over Lake Shelbyville in Moultrie County, Illinois. It was built in 1969, so it is 56 years old, older 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 500 vehicles a day, roughly 2% of them trucks, projected to reach 525 by 2046. The structure is 1,172 ft (357.1 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesFAS 1663
CrossesLake Shelbyville
Location2 MI S Kirksville
RouteCounty Highway 0
CountyMoultrie County
StateIllinois
Coordinates39.54221, -88.67175
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans16
Design loadHS 20
Structure length1,172 ft (357.1 m)
Longest span72 ft (21.8 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2020)
Projected traffic525 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 1663 over Lake Shelbyville built?

It was built in 1969, making it 56 years old in 2025.

What condition is FAS 1663 over Lake Shelbyville 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 FAS 1663 over Lake Shelbyville carry?

About 500 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is FAS 1663 over Lake Shelbyville?

The structure is 1,172 ft (357.1 m) long with a longest span of 72 ft (21.8 m) and a deck 28 ft wide.

Who owns FAS 1663 over Lake Shelbyville?

It is owned by the Town or Township Highway Agency.