US Bridges

Conway Road over Little Patuxent River

Fair

Anne Arundel County, Maryland · 0.43 MI W of Md 3 · Structure no. 200000AA4005010

Built
1966
59 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
236 ft
3 main spans
Daily traffic
9,663
2021 count
Owner
County
County Highway Agency

About this bridge

Conway Road over Little Patuxent River is a steel continuous stringer/multi-beam or girder carrying Conway Road over Little Patuxent River in Anne Arundel County, Maryland. It was built in 1966, so it is 59 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 9,663 vehicles a day, roughly 5% of them trucks, projected to reach 11,789 by 2041. The structure is 236 ft (71.9 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesConway Road
CrossesLittle Patuxent River
Location0.43 MI W of Md 3
RouteCounty Highway 2633
Coordinates39.02386, -76.70171
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 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 rating66 US tons
Inventory rating39.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length236 ft (71.9 m)
Longest span90 ft (27.4 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,663 (2021)
Projected traffic11,789 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$48,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Conway Road over Little Patuxent River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Conway Road over Little 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 February 2024.

How much traffic does Conway Road over Little Patuxent River carry?

About 9,663 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Conway Road over Little Patuxent River?

The structure is 236 ft (71.9 m) long with a longest span of 90 ft (27.4 m) and a deck 36 ft wide.

Who owns Conway Road over Little Patuxent River?

It is owned by the County Highway Agency.