US Bridges

Green Mill Road over Beaver Run

Fair

Carroll County, Maryland · 1.02 Miles SW of Md 140 · Structure no. 200000CL0345010

Built
1976
49 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
1,291
2021 count
Owner
County
County Highway Agency

About this bridge

Green Mill Road over Beaver Run is a steel stringer/multi-beam or girder carrying Green Mill Road over Beaver Run in Carroll County, Maryland. It was built in 1976, so it is 49 years old, younger 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 1,291 vehicles a day, roughly 8% of them trucks, projected to reach 2,115 by 2041. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGreen Mill Road
CrossesBeaver Run
Location1.02 Miles SW of Md 140
RouteCounty Highway 503
CountyCarroll County
StateMaryland
Coordinates39.51023, -76.92674
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.4 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,291 (2021)
Projected traffic2,115 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Green Mill Road over Beaver Run built?

It was built in 1976, making it 49 years old in 2025.

What condition is Green Mill Road over Beaver 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 Green Mill Road over Beaver Run carry?

About 1,291 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Green Mill Road over Beaver Run?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.

Who owns Green Mill Road over Beaver Run?

It is owned by the County Highway Agency.