US Bridges

Md 175 over CSX RR

Fair

Howard County, Maryland · On Anne Arundel CO Line · Structure no. 100000130043010

Built
1942
83 years old, rebuilt 1976
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
194 ft
3 main spans
Daily traffic
21,441
2024 count
Owner
State
State Highway Agency

About this bridge

Md 175 over CSX RR is a steel stringer/multi-beam or girder carrying Md 175 over CSX RR in Howard County, Maryland. It was built in 1942 and reconstructed in 1976, so it is 83 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 21,441 vehicles a day, roughly 8% of them trucks, projected to reach 25,071 by 2046. The structure is 194 ft (59.1 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

No coordinates are recorded for this structure.

CarriesMd 175
CrossesCSX RR
LocationOn Anne Arundel CO Line
RouteState Highway 175
CountyHoward County
StateMaryland
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length194 ft (59.1 m)
Longest span77 ft (23.5 m)
Deck width37 ft (11.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,441 (2024)
Projected traffic25,071 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$480,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 175 over CSX RR built?

It was built in 1942, making it 83 years old in 2025. It was reconstructed in 1976.

What condition is Md 175 over CSX RR 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 August 2024.

How much traffic does Md 175 over CSX RR carry?

About 21,441 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Md 175 over CSX RR?

The structure is 194 ft (59.1 m) long with a longest span of 77 ft (23.5 m) and a deck 37 ft wide.

Who owns Md 175 over CSX RR?

It is owned by the State Highway Agency.