US Bridges

Md 175 over AMTRAK

Fair

Anne Arundel County, Maryland · 0.37 Mile North of Md 170 · Structure no. 100000020048010

Built
1938
87 years old, rebuilt 1966
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
196 ft
1 main span
Daily traffic
28,180
2018 count
Owner
State
State Highway Agency

About this bridge

Md 175 over AMTRAK is a steel stringer/multi-beam or girder carrying Md 175 over AMTRAK in Anne Arundel County, Maryland. It was built in 1938 and reconstructed in 1966, so it is 87 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 5 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 28,180 vehicles a day, roughly 4% of them trucks, projected to reach 31,000 by 2038. The structure is 196 ft (59.7 m) long and 68 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMd 175
CrossesAMTRAK
Location0.37 Mile North of Md 170
RouteState Highway 175
CountyAnne Arundel County
StateMaryland
Coordinates39.08967, -76.70522
Functional classUrban Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span84 ft (25.6 m)
Deck width68 ft (20.7 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,180 (2018)
Projected traffic31,000 by 2038
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed6.2 mi (10 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$799,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 175 over AMTRAK built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1966.

What condition is Md 175 over AMTRAK 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 June 2023.

How much traffic does Md 175 over AMTRAK carry?

About 28,180 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Md 175 over AMTRAK?

The structure is 196 ft (59.7 m) long with a longest span of 84 ft (25.6 m) and a deck 68 ft wide.

Who owns Md 175 over AMTRAK?

It is owned by the State Highway Agency.