TR 312 over E Fork Lamoine River
FairMcDonough County, Illinois · NW-21-T6NR2W · Structure no. 055471100000000
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 194 ft
- 3 main spans
- Daily traffic
- 525
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 312 over E Fork Lamoine River is a prestressed concrete box beam or girders - multiple carrying TR 312 over E Fork Lamoine River in McDonough County, Illinois. It was built in 1986, so it is 39 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 525 vehicles a day, roughly 10% of them trucks, projected to reach 530 by 2046. The structure is 194 ft (59.1 m) long and 28 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 312 over E Fork Lamoine River built?
It was built in 1986, making it 39 years old in 2025.
What condition is TR 312 over E Fork Lamoine River 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 December 2023.
How much traffic does TR 312 over E Fork Lamoine River carry?
About 525 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is TR 312 over E Fork Lamoine River?
The structure is 194 ft (59.1 m) long with a longest span of 64 ft (19.5 m) and a deck 28 ft wide.
Who owns TR 312 over E Fork Lamoine River?
It is owned by the Town or Township Highway Agency.