US Bridges

Old Annapolis Road over Little Patuxent River

Fair

Howard County, Maryland · 0.04 MI W CO 76 & Md 108 · Structure no. 200000HO0025010

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
86 ft
1 main span
Daily traffic
7,285
1998 count
Owner
County
County Highway Agency

About this bridge

Old Annapolis Road over Little Patuxent River is a steel stringer/multi-beam or girder carrying Old Annapolis Road over Little Patuxent River in Howard County, Maryland. It was built in 1987, so it is 38 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 7,285 vehicles a day, roughly 4% of them trucks, projected to reach 10,900 by 2015. The structure is 86 ft (26.2 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesOld Annapolis Road
CrossesLittle Patuxent River
Location0.04 MI W CO 76 & Md 108
RouteCounty Highway 76
CountyHoward County
StateMaryland
Coordinates39.24471, -76.84622
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating72 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length86 ft (26.2 m)
Longest span82 ft (25 m)
Deck width45 ft (13.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,285 (1998)
Projected traffic10,900 by 2015
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Annapolis Road over Little Patuxent River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Old Annapolis 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 March 2023.

How much traffic does Old Annapolis Road over Little Patuxent River carry?

About 7,285 vehicles per day (1998 count), of which roughly 4% are trucks.

How long is Old Annapolis Road over Little Patuxent River?

The structure is 86 ft (26.2 m) long with a longest span of 82 ft (25 m) and a deck 45 ft wide.

Who owns Old Annapolis Road over Little Patuxent River?

It is owned by the County Highway Agency.