RTE 18 over Twelve Mile Creek
PoorNiagara County, New York · 2 MI SW JCT SH 18 & SH425 · Structure no. 000000001014650
- Built
- 1930
- 95 years old, rebuilt 1994
- Condition
- Poor
- inspected September 2024
- Type
- Truss - Thru
- Steel
- Length
- 245 ft
- 1 main span
- Daily traffic
- 2,101
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
RTE 18 over Twelve Mile Creek is a steel truss - thru carrying RTE 18 over Twelve Mile Creek in Niagara County, New York. It was built in 1930 and reconstructed in 1994, so it is 95 years old, older than the New York average of 53 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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 2,101 vehicles a day, roughly 5% of them trucks, projected to reach 2,216 by 2041. The structure is 245 ft (74.7 m) long and 37 ft wide. If it were closed, the detour would be 5.6 mi (9 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was RTE 18 over Twelve Mile Creek built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1994.
What condition is RTE 18 over Twelve Mile Creek 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 September 2024.
How much traffic does RTE 18 over Twelve Mile Creek carry?
About 2,101 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is RTE 18 over Twelve Mile Creek?
The structure is 245 ft (74.7 m) long with a longest span of 240 ft (73.1 m) and a deck 37 ft wide.
Who owns RTE 18 over Twelve Mile Creek?
It is owned by the State Highway Agency.