US Bridges

Md 175 over Br of Little Patuxent Ri

Fair

Howard County, Maryland · 2.1 Mile North of Md 108 · Structure no. 100000130139030

Built
1977
48 years old, rebuilt 1990
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
31 ft
Daily traffic
44,142
2013 count
Owner
State
State Highway Agency

About this bridge

Md 175 over Br of Little Patuxent Ri is a steel culvert carrying Md 175 over Br of Little Patuxent Ri in Howard County, Maryland. It was built in 1977 and reconstructed in 1990, so it is 48 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 44,142 vehicles a day, roughly 8% of them trucks, projected to reach 57,266 by 2032. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMd 175
CrossesBr of Little Patuxent Ri
Location2.1 Mile North of Md 108
RouteState Highway 175
CountyHoward County
StateMaryland
Coordinates39.20718, -76.81974
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,142 (2013)
Projected traffic57,266 by 2032
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 175 over Br of Little Patuxent Ri built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1990.

What condition is Md 175 over Br of Little Patuxent Ri 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 Md 175 over Br of Little Patuxent Ri carry?

About 44,142 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is Md 175 over Br of Little Patuxent Ri?

The structure is 31 ft (9.4 m) long with a longest span of 13 ft (4 m).

Who owns Md 175 over Br of Little Patuxent Ri?

It is owned by the State Highway Agency.