US Bridges

US 136EB/WB over Il 336

Fair

McDonough County, Illinois · App 2MI W of Macomb · Structure no. 055006300000000

Built
2013
12 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
246 ft
2 main spans
Daily traffic
4,200
2023 count
Owner
State
State Highway Agency

About this bridge

US 136EB/WB over Il 336 is a steel continuous stringer/multi-beam or girder carrying US 136EB/WB over Il 336 in McDonough County, Illinois. It was built in 2013, so it is 12 years old, younger 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 5 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 4,200 vehicles a day, roughly 8% of them trucks, projected to reach 2,096 by 2046. The structure is 246 ft (75 m) long and 92 ft wide.

Location

Open in Google Maps
CarriesUS 136EB/WB
CrossesIl 336
LocationApp 2MI W of Macomb
RouteU.S. Route 136
CountyMcDonough County
StateIllinois
Coordinates40.44814, -90.73822
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length246 ft (75 m)
Longest span125 ft (38 m)
Deck width92 ft (27.9 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2023)
Projected traffic2,096 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 US 136EB/WB over Il 336 built?

It was built in 2013, making it 12 years old in 2025.

What condition is US 136EB/WB over Il 336 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 September 2023.

How much traffic does US 136EB/WB over Il 336 carry?

About 4,200 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 136EB/WB over Il 336?

The structure is 246 ft (75 m) long with a longest span of 125 ft (38 m) and a deck 92 ft wide.

Who owns US 136EB/WB over Il 336?

It is owned by the State Highway Agency.