Midcounty HWY & MI over Mill Creek
PoorMontgomery County, Maryland · .5 MI W of Shady Grove RD · Structure no. 200000M-0219030
- Built
- 1984
- 41 years old, rebuilt 1990
- Condition
- Poor
- inspected September 2024
- Type
- Culvert
- Steel
- Length
- 64 ft
- Daily traffic
- 17,842
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Midcounty HWY & MI over Mill Creek is a steel culvert carrying Midcounty HWY & MI over Mill Creek in Montgomery County, Maryland. It was built in 1984 and reconstructed in 1990, so it is 41 years old, younger than the Maryland average of 52.6 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 17,842 vehicles a day, roughly 2% of them trucks, projected to reach 20,810 by 2045. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Midcounty HWY & MI over Mill Creek built?
It was built in 1984, making it 41 years old in 2025. It was reconstructed in 1990.
What condition is Midcounty HWY & MI over Mill 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 Midcounty HWY & MI over Mill Creek carry?
About 17,842 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Midcounty HWY & MI over Mill Creek?
The structure is 64 ft (19.5 m) long with a longest span of 11 ft (3.4 m).
Who owns Midcounty HWY & MI over Mill Creek?
It is owned by the County Highway Agency.