Riva Road over South River

Fair

Anne Arundel County, Maryland · 2 MI South of Md 665 · Structure no. 200000AA2005010

Built: 1959; 66 years old, rebuilt 1992
Condition: Fair; inspected November 2023
Type: Stringer/Multi-beam or Girder; Steel
Length: 1,576 ft; 28 main spans
Daily traffic: 10,210; 2023 count
Owner: County; County Highway Agency

About this bridge

Riva Road over South River is a steel stringer/multi-beam or girder carrying Riva Road over South River in Anne Arundel County, Maryland. It was built in 1959 and reconstructed in 1992, so it is 66 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 10,210 vehicles a day, roughly 5% of them trucks, projected to reach 10,212 by 2045. The structure is 1,576 ft (480.4 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

No coordinates are recorded for this structure.

CarriesRiva Road

CrossesSouth River

Location2 MI South of Md 665

RouteCounty Highway 2749

CountyAnne Arundel County

StateMaryland

Functional classRural 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.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionNovember 2023

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 adequacy8: Equal to present desirable criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating110.1 US tons

Inventory rating62.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder

MaterialSteel

DeckConcrete, cast-in-place

Main spans28

Design loadHS 25 or greater

Structure length1,576 ft (480.4 m)

Longest span65 ft (19.8 m)

Deck width33 ft (10.1 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic10,210 (2023)

Projected traffic10,212 by 2045

Trucks5%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed6.8 mi (11 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—

NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Riva Road over South River built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1992.

What condition is Riva Road over South 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 November 2023.

How much traffic does Riva Road over South River carry?

About 10,210 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Riva Road over South River?

The structure is 1,576 ft (480.4 m) long with a longest span of 65 ft (19.8 m) and a deck 33 ft wide.

Who owns Riva Road over South River?

It is owned by the County Highway Agency.