US Bridges

TR 55 over Drowning Fork

Good

McDonough County, Illinois · S.CTR-29-T7NR1W · Structure no. 055411300000000

Built
2020
5 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
150
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 55 over Drowning Fork is a prestressed concrete box beam or girders - multiple carrying TR 55 over Drowning Fork in McDonough County, Illinois. It was built in 2020, so it is 5 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 150 vehicles a day, roughly 30% of them trucks, projected to reach 202 by 2046. The structure is 82 ft (25.1 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 55
CrossesDrowning Fork
LocationS.CTR-29-T7NR1W
RouteCounty Highway 0
Coordinates40.85469, -89.73642
Functional classRural 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 protection9 ExcellentNo problems noted.
Last inspectionJanuary 2025
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating53.9 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length82 ft (25.1 m)
Longest span79 ft (24.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic202 by 2046
Trucks30%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR 55 over Drowning Fork built?

It was built in 2020, making it 5 years old in 2025.

What condition is TR 55 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 TR 55 over Drowning Fork carry?

About 150 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is TR 55 over Drowning Fork?

The structure is 82 ft (25.1 m) long with a longest span of 79 ft (24.2 m) and a deck 28 ft wide.

Who owns TR 55 over Drowning Fork?

It is owned by the Town or Township Highway Agency.