US Bridges

Md 145 (paper Mill over Gunpowder Falls

Fair

Baltimore County, Maryland · 1.7 Mi. E. of York Road · Structure no. 100000030376010

Built
2000
25 years old
Condition
Fair
inspected March 2024
Type
Arch - Thru
Steel
Length
674 ft
1 main span
Daily traffic
9,732
2023 count
Owner
State
State Highway Agency

About this bridge

Md 145 (paper Mill over Gunpowder Falls is a steel arch - thru carrying Md 145 (paper Mill over Gunpowder Falls in Baltimore County, Maryland. It was built in 2000, so it is 25 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 9,732 vehicles a day, roughly 6% of them trucks, projected to reach 12,354 by 2043. The structure is 674 ft (205.4 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMd 145 (paper Mill
CrossesGunpowder Falls
Location1.7 Mi. E. of York Road
RouteState Highway 145
CountyBaltimore County
StateMaryland
Coordinates39.50128, -76.62369
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.5 US tons
Inventory rating55.4 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadHS 25 or greater
Structure length674 ft (205.4 m)
Longest span518 ft (157.9 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deck21 ft (6.4 m)

Traffic and service

Average daily traffic9,732 (2023)
Projected traffic12,354 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Md 145 (paper Mill over Gunpowder Falls built?

It was built in 2000, making it 25 years old in 2025.

What condition is Md 145 (paper Mill over Gunpowder Falls 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 March 2024.

How much traffic does Md 145 (paper Mill over Gunpowder Falls carry?

About 9,732 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Md 145 (paper Mill over Gunpowder Falls?

The structure is 674 ft (205.4 m) long with a longest span of 518 ft (157.9 m) and a deck 39 ft wide.

Who owns Md 145 (paper Mill over Gunpowder Falls?

It is owned by the State Highway Agency.