HWY 287 Bypass over Missouri River 019
PoorClosed to trafficBroadwater County, Montana · Toston · Structure no. L04415000+01001
- Built
- 1920
- 105 years old
- Condition
- Poor
- inspected June 2024
- Type
- Truss - Thru
- Steel
- Length
- 532 ft
- 3 main spans
- Daily traffic
- 178
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
HWY 287 Bypass over Missouri River 019 is a steel truss - thru carrying HWY 287 Bypass over Missouri River 019 in Broadwater County, Montana. It was built in 1920, so it is 105 years old, older than the Montana average of 47 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. Its operating status is: closed to all traffic.
It carries about 178 vehicles a day, roughly 3% of them trucks, projected to reach 190 by 2043. The structure is 532 ft (162.1 m) long and 16 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY 287 Bypass over Missouri River 019 built?
It was built in 1920, making it 105 years old in 2025.
What condition is HWY 287 Bypass over Missouri River 019 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 June 2024.
How much traffic does HWY 287 Bypass over Missouri River 019 carry?
About 178 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is HWY 287 Bypass over Missouri River 019?
The structure is 532 ft (162.1 m) long with a longest span of 175 ft (53.3 m) and a deck 16 ft wide.
Who owns HWY 287 Bypass over Missouri River 019?
It is owned by the County Highway Agency.