Mill Street over Rock Run
PoorClosed to trafficCecil County, Maryland · .01 MI S. of Race Street · Structure no. 200000CEPD01010
- Built
- 1940
- 85 years old
- Condition
- Poor
- inspected October 2011
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 29 ft
- 1 main span
- Daily traffic
- 100
- 2005 count
- Owner
- County
- County Highway Agency
About this bridge
Mill Street over Rock Run is a steel stringer/multi-beam or girder carrying Mill Street over Rock Run in Cecil County, Maryland. It was built in 1940, so it is 85 years old, older 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 0 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 100 vehicles a day, projected to reach 110 by 2026. The structure is 29 ft (8.8 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 0 Failed | Out of service and beyond corrective action. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Mill Street over Rock Run built?
It was built in 1940, making it 85 years old in 2025.
What condition is Mill Street over Rock Run 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 October 2011.
How much traffic does Mill Street over Rock Run carry?
About 100 vehicles per day (2005 count).
How long is Mill Street over Rock Run?
The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 14 ft wide.
Who owns Mill Street over Rock Run?
It is owned by the County Highway Agency.