US Bridges

TR 91A Fdr 443 over Lake Glendale Spillway

Fair

Pope County, Illinois · 2.5 M S Glendale · Structure no. 090804000001000

Built
1937
88 years old
Condition
Fair
inspected May 2023
Type
Frame
Concrete
Length
34 ft
1 main span
Daily traffic
125
1993 count
Owner
Federal
U.S. Forest Service

About this bridge

TR 91A Fdr 443 over Lake Glendale Spillway is a concrete frame carrying TR 91A Fdr 443 over Lake Glendale Spillway in Pope County, Illinois. It was built in 1937, so it is 88 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 125 vehicles a day, roughly 5% of them trucks, projected to reach 187 by 2045. The structure is 34 ft (10.4 m) long and 28 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesTR 91A Fdr 443
CrossesLake Glendale Spillway
Location2.5 M S Glendale
RouteFederal Lands Road 443
CountyPope County
StateIllinois
Coordinates37.41519, -88.66397
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to 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 rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (1993)
Projected traffic187 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 91A Fdr 443 over Lake Glendale Spillway built?

It was built in 1937, making it 88 years old in 2025.

What condition is TR 91A Fdr 443 over Lake Glendale Spillway 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 2023.

How much traffic does TR 91A Fdr 443 over Lake Glendale Spillway carry?

About 125 vehicles per day (1993 count), of which roughly 5% are trucks.

How long is TR 91A Fdr 443 over Lake Glendale Spillway?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns TR 91A Fdr 443 over Lake Glendale Spillway?

It is owned by the U.S. Forest Service.