US Bridges

Is 95 NB over Middle Patuxent River

Fair

Howard County, Maryland · 0.18 Mile North of Is 95I · Structure no. 100000130056011

Built
1970
55 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
254 ft
3 main spans
Daily traffic
186,750
2009 count
Owner
State
State Highway Agency

About this bridge

Is 95 NB over Middle Patuxent River is a steel continuous stringer/multi-beam or girder carrying Is 95 NB over Middle Patuxent River in Howard County, Maryland. It was built in 1970, so it is 55 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 186,750 vehicles a day, roughly 8% of them trucks, projected to reach 302,430 by 2029. The structure is 254 ft (77.4 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 95 NB
CrossesMiddle Patuxent River
Location0.18 Mile North of Is 95I
RouteInterstate 95
Coordinates39.14708, -76.84214
Functional classUrban Principal Arterial - Interstate

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating51.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length254 ft (77.4 m)
Longest span95 ft (29 m)
Deck width71 ft (21.6 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic186,750 (2009)
Projected traffic302,430 by 2029
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Is 95 NB over Middle Patuxent River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Is 95 NB over Middle Patuxent River 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 July 2024.

How much traffic does Is 95 NB over Middle Patuxent River carry?

About 186,750 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 95 NB over Middle Patuxent River?

The structure is 254 ft (77.4 m) long with a longest span of 95 ft (29 m) and a deck 71 ft wide.

Who owns Is 95 NB over Middle Patuxent River?

It is owned by the State Highway Agency.