US Bridges

TR 84A over Trib to Andy Creek

Good

Franklin County, Illinois · 950N 575E · Structure no. 028332600000000

Built
1994
31 years old
Condition
Good
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
600
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 84A over Trib to Andy Creek is a prestressed concrete box beam or girders - multiple carrying TR 84A over Trib to Andy Creek in Franklin County, Illinois. It was built in 1994, so it is 31 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 600 vehicles a day, roughly 23% of them trucks, projected to reach 657 by 2046. The structure is 41 ft (12.6 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 84A
CrossesTrib to Andy Creek
Location950N 575E
RouteCounty Highway 0
Coordinates38.00338, -89.04431
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 protection8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating59.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span39 ft (11.9 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2024)
Projected traffic657 by 2046
Trucks23%
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

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 84A over Trib to Andy Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is TR 84A over Trib to Andy Creek 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 June 2022.

How much traffic does TR 84A over Trib to Andy Creek carry?

About 600 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is TR 84A over Trib to Andy Creek?

The structure is 41 ft (12.6 m) long with a longest span of 39 ft (11.9 m) and a deck 28 ft wide.

Who owns TR 84A over Trib to Andy Creek?

It is owned by the Town or Township Highway Agency.