US Bridges

BL72/IL104/MORTON over Town Brook

Fair

Morgan County, Illinois · 1.2M W IL267-JACKSNV · Structure no. 069000700000000

Built
1952
73 years old, rebuilt 1981
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
16,300
2023 count
Owner
State
State Highway Agency

About this bridge

BL72/IL104/MORTON over Town Brook is a concrete slab carrying BL72/IL104/MORTON over Town Brook in Morgan County, Illinois. It was built in 1952 and reconstructed in 1981, so it is 73 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 16,300 vehicles a day, roughly 4% of them trucks, projected to reach 17,170 by 2046. The structure is 32 ft (9.8 m) long and 78 ft wide.

Location

Open in Google Maps
CarriesBL72/IL104/MORTON
CrossesTown Brook
Location1.2M W IL267-JACKSNV
RouteInterstate 72
CountyMorgan County
StateIllinois
Coordinates39.72321, -90.2526
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width78 ft (23.8 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,300 (2023)
Projected traffic17,170 by 2046
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 BL72/IL104/MORTON over Town Brook built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1981.

What condition is BL72/IL104/MORTON over Town Brook 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 November 2023.

How much traffic does BL72/IL104/MORTON over Town Brook carry?

About 16,300 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is BL72/IL104/MORTON over Town Brook?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 78 ft wide.

Who owns BL72/IL104/MORTON over Town Brook?

It is owned by the State Highway Agency.