US Bridges

FAS 1273/CH 36 over Deadly Run

Fair

LaSalle County, Illinois · N2550 RD E2950 · Structure no. 050347100000000

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
1,050
2020 count
Owner
County
County Highway Agency

About this bridge

FAS 1273/CH 36 over Deadly Run is a prestressed concrete box beam or girders - multiple carrying FAS 1273/CH 36 over Deadly Run in LaSalle County, Illinois. It was built in 1980, so it is 45 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 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 1,050 vehicles a day, roughly 13% of them trucks, projected to reach 1,061 by 2046. The structure is 47 ft (14.3 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesFAS 1273/CH 36
CrossesDeadly Run
LocationN2550 RD E2950
RouteCounty Highway 0
CountyLaSalle County
StateIllinois
Coordinates41.29828, -88.59752
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 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 length47 ft (14.3 m)
Longest span45 ft (13.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2020)
Projected traffic1,061 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 1273/CH 36 over Deadly Run built?

It was built in 1980, making it 45 years old in 2025.

What condition is FAS 1273/CH 36 over Deadly Run 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 FAS 1273/CH 36 over Deadly Run carry?

About 1,050 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is FAS 1273/CH 36 over Deadly Run?

The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.7 m) and a deck 28 ft wide.

Who owns FAS 1273/CH 36 over Deadly Run?

It is owned by the County Highway Agency.