US Bridges

West Chambers ST over Town Brook

Good

Morgan County, Illinois · On W Chambers@brook · Structure no. 069603300000000

Built
2005
20 years old
Condition
Good
inspected May 2020
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
850
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

West Chambers ST over Town Brook is a prestressed concrete box beam or girders - multiple carrying West Chambers ST over Town Brook in Morgan County, Illinois. It was built in 2005, so it is 20 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 850 vehicles a day, roughly 2% of them trucks, projected to reach 859 by 2046. The structure is 77 ft (23.5 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWest Chambers ST
CrossesTown Brook
LocationOn W Chambers@brook
RouteCity Street 0
CountyMorgan County
StateIllinois
Coordinates39.72699, -90.23475
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2020
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span73 ft (22.4 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2024)
Projected traffic859 by 2046
Trucks2%
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 West Chambers ST over Town Brook built?

It was built in 2005, making it 20 years old in 2025.

What condition is West Chambers ST over Town Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2020.

How much traffic does West Chambers ST over Town Brook carry?

About 850 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is West Chambers ST over Town Brook?

The structure is 77 ft (23.5 m) long with a longest span of 73 ft (22.4 m) and a deck 30 ft wide.

Who owns West Chambers ST over Town Brook?

It is owned by the City or Municipal Highway Agency.