Twp RD 104 over Massac Ck
PoorMassac County, Illinois · 4.5 MI East RD Knob · Structure no. 064305300000000
- Built
- 1977
- 48 years old
- Condition
- Poor
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 51 ft
- 1 main span
- Daily traffic
- 25
- 2020 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Twp RD 104 over Massac Ck is a prestressed concrete box beam or girders - multiple carrying Twp RD 104 over Massac Ck in Massac County, Illinois. It was built in 1977, so it is 48 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 25 vehicles a day, roughly 44% of them trucks, projected to reach 25 by 2046. The structure is 51 ft (15.5 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Twp RD 104 over Massac Ck built?
It was built in 1977, making it 48 years old in 2025.
What condition is Twp RD 104 over Massac Ck in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.
How much traffic does Twp RD 104 over Massac Ck carry?
About 25 vehicles per day (2020 count), of which roughly 44% are trucks.
How long is Twp RD 104 over Massac Ck?
The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m) and a deck 20 ft wide.
Who owns Twp RD 104 over Massac Ck?
It is owned by the Town or Township Highway Agency.