US Bridges

FAS 1436-CH 12 over Farmers Fork

Good

McDonough County, Illinois · SW-35-T7NR2W · Structure no. 055302000000000

Built
1956
69 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
107 ft
3 main spans
Daily traffic
275
2021 count
Owner
County
County Highway Agency

About this bridge

FAS 1436-CH 12 over Farmers Fork is a steel continuous stringer/multi-beam or girder carrying FAS 1436-CH 12 over Farmers Fork in McDonough County, Illinois. It was built in 1956, so it is 69 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 275 vehicles a day, roughly 15% of them trucks, projected to reach 278 by 2046. The structure is 107 ft (32.6 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 1436-CH 12
CrossesFarmers Fork
LocationSW-35-T7NR2W
RouteCounty Highway 0
Coordinates40.54715, -90.59448
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length107 ft (32.6 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2021)
Projected traffic278 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 1436-CH 12 over Farmers Fork built?

It was built in 1956, making it 69 years old in 2025.

What condition is FAS 1436-CH 12 over Farmers Fork 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 December 2023.

How much traffic does FAS 1436-CH 12 over Farmers Fork carry?

About 275 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is FAS 1436-CH 12 over Farmers Fork?

The structure is 107 ft (32.6 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns FAS 1436-CH 12 over Farmers Fork?

It is owned by the County Highway Agency.