US Bridges

FAS 438 - Ch 21 over Drowning Fork

Good

McDonough County, Illinois · S.CTR-4-T7NR1W · Structure no. 055306100000000

Built
2003
22 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
112 ft
3 main spans
Daily traffic
200
2021 count
Owner
County
County Highway Agency

About this bridge

FAS 438 - Ch 21 over Drowning Fork is a prestressed concrete box beam or girders - multiple carrying FAS 438 - Ch 21 over Drowning Fork in McDonough County, Illinois. It was built in 2003, so it is 22 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 200 vehicles a day, roughly 7% of them trucks, projected to reach 202 by 2046. The structure is 112 ft (34 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS 438 - Ch 21
CrossesDrowning Fork
LocationS.CTR-4-T7NR1W
RouteCounty Highway 0
Coordinates40.61505, -90.5123
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 48 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length112 ft (34 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic202 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 438 - Ch 21 over Drowning Fork built?

It was built in 2003, making it 22 years old in 2025.

What condition is FAS 438 - Ch 21 over Drowning 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 January 2025.

How much traffic does FAS 438 - Ch 21 over Drowning Fork carry?

About 200 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAS 438 - Ch 21 over Drowning Fork?

The structure is 112 ft (34 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns FAS 438 - Ch 21 over Drowning Fork?

It is owned by the County Highway Agency.