US Bridges

Md 94 over Patuxent River

Fair

Howard County, Maryland · On Montgomery CO Line · Structure no. 100000130047010

Built
1989
36 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
3,022
2009 count
Owner
State
State Highway Agency

About this bridge

Md 94 over Patuxent River is a prestressed concrete slab carrying Md 94 over Patuxent River in Howard County, Maryland. It was built in 1989, so it is 36 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 3,022 vehicles a day, roughly 8% of them trucks, projected to reach 3,484 by 2026. The structure is 54 ft (16.5 m) long and 34 ft wide.

CarriesMd 94
CrossesPatuxent River
LocationOn Montgomery CO Line
RouteState Highway 94
Coordinates39.27679, -77.1345
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.9 US tons
Inventory rating46.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,022 (2009)
Projected traffic3,484 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 94 over Patuxent River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Md 94 over 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 Md 94 over Patuxent River carry?

About 3,022 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 94 over Patuxent River?

The structure is 54 ft (16.5 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns Md 94 over Patuxent River?

It is owned by the State Highway Agency.