US Bridges

Mount Street over Stone Run

Fair

Cecil County, Maryland · 0.21 MI S of US 1 · Structure no. 200000CE0009020

Built
1960
65 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
29 ft
Daily traffic
1,162
2022 count
Owner
County
County Highway Agency

About this bridge

Mount Street over Stone Run is a concrete culvert carrying Mount Street over Stone Run in Cecil County, Maryland. It was built in 1960, so it is 65 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,162 vehicles a day, roughly 5% of them trucks, projected to reach 1,727 by 2042. The structure is 29 ft (8.8 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

No coordinates are recorded for this structure.

CarriesMount Street
CrossesStone Run
Location0.21 MI S of US 1
RouteCounty Highway 402
CountyCecil County
StateMaryland
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating56.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,162 (2022)
Projected traffic1,727 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$34,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mount Street over Stone Run built?

It was built in 1960, making it 65 years old in 2025.

What condition is Mount Street over Stone Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Mount Street over Stone Run carry?

About 1,162 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Mount Street over Stone Run?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 40 ft wide.

Who owns Mount Street over Stone Run?

It is owned by the County Highway Agency.