US Bridges

East ST over Town Brook

PoorPosted for load

Morgan County, Illinois · East ST at CR · Structure no. 069602300000000

Built
1979
46 years old
Condition
Poor
inspected May 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
900
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

East ST over Town Brook is a prestressed concrete box beam or girders - multiple carrying East ST over Town Brook in Morgan County, Illinois. It was built in 1979, so it is 46 years old, older 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 900 vehicles a day, roughly 5% of them trucks, projected to reach 1,111 by 2046. The structure is 26 ft (7.9 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEast ST
CrossesTown Brook
LocationEast ST at CR
RouteCity Street 0
Coordinates39.72884, -90.22682
Functional classUrban Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating22.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width47 ft (14.2 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2024)
Projected traffic1,111 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 East ST over Town Brook built?

It was built in 1979, making it 46 years old in 2025.

What condition is East ST over Town Brook 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 May 2022.

How much traffic does East ST over Town Brook carry?

About 900 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is East ST over Town Brook?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 47 ft wide.

Who owns East ST over Town Brook?

It is owned by the City or Municipal Highway Agency.