US Bridges

Md 45 over Beaverdam Run

Good

Baltimore County, Maryland · 0.11 M N of Railroad Ave · Structure no. 100000030043010

Built
1990
35 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
141 ft
3 main spans
Daily traffic
30,482
2009 count
Owner
State
State Highway Agency

About this bridge

Md 45 over Beaverdam Run is a steel continuous stringer/multi-beam or girder carrying Md 45 over Beaverdam Run in Baltimore County, Maryland. It was built in 1990, so it is 35 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30,482 vehicles a day, roughly 8% of them trucks, projected to reach 33,047 by 2026. The structure is 141 ft (43 m) long and 71 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMd 45
CrossesBeaverdam Run
Location0.11 M N of Railroad Ave
RouteState Highway 45
CountyBaltimore County
StateMaryland
Coordinates39.48531, -76.64565
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.9 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length141 ft (43 m)
Longest span46 ft (14 m)
Deck width71 ft (21.7 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,482 (2009)
Projected traffic33,047 by 2026
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$663,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 45 over Beaverdam Run built?

It was built in 1990, making it 35 years old in 2025.

What condition is Md 45 over Beaverdam Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Md 45 over Beaverdam Run carry?

About 30,482 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 45 over Beaverdam Run?

The structure is 141 ft (43 m) long with a longest span of 46 ft (14 m) and a deck 71 ft wide.

Who owns Md 45 over Beaverdam Run?

It is owned by the State Highway Agency.