US Bridges

FAS 1728 over Lake

PoorPosted for load

Macoupin County, Illinois · SW of Eagerville · Structure no. 059630000000000

Built
2000
25 years old
Condition
Poor
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
99 ft
3 main spans
Daily traffic
350
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

FAS 1728 over Lake is a prestressed concrete box beam or girders - multiple carrying FAS 1728 over Lake in Macoupin County, Illinois. It was built in 2000, so it is 25 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 350 vehicles a day, roughly 5% of them trucks, projected to reach 354 by 2046. The structure is 99 ft (30.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFAS 1728
CrossesLake
LocationSW of Eagerville
RouteCounty Highway 0
CountyMacoupin County
StateIllinois
Coordinates39.10788, -89.79043
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating13.6 US tons
Inventory rating6.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span96 ft (29.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2016)
Projected traffic354 by 2046
Trucks5%
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

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 1728 over Lake built?

It was built in 2000, making it 25 years old in 2025.

What condition is FAS 1728 over Lake in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2023.

How much traffic does FAS 1728 over Lake carry?

About 350 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is FAS 1728 over Lake?

The structure is 99 ft (30.2 m) long with a longest span of 96 ft (29.4 m) and a deck 28 ft wide.

Who owns FAS 1728 over Lake?

It is owned by the Town or Township Highway Agency.