US Bridges

Md 732R over CSX Trans Brock Bridge

Good

Howard County, Maryland · On Anne Arundel CO Line · Structure no. 100000130125010

Built
1990
35 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
203 ft
2 main spans
Daily traffic
15,761
2009 count
Owner
State
State Highway Agency

About this bridge

Md 732R over CSX Trans Brock Bridge is a steel continuous stringer/multi-beam or girder carrying Md 732R over CSX Trans Brock Bridge in Howard County, Maryland. It was built in 1990, so it is 35 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,761 vehicles a day, roughly 8% of them trucks, projected to reach 13,780 by 2026. The structure is 203 ft (61.9 m) long and 42 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesMd 732R
CrossesCSX Trans Brock Bridge
LocationOn Anne Arundel CO Line
RouteState Highway 732R
Coordinates39.12245, -76.79662
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length203 ft (61.9 m)
Longest span113 ft (34.4 m)
Deck width42 ft (12.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,761 (2009)
Projected traffic13,780 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed98.8 mi (159 km)
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 732R over CSX Trans Brock Bridge built?

It was built in 1990, making it 35 years old in 2025.

What condition is Md 732R over CSX Trans Brock Bridge in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Md 732R over CSX Trans Brock Bridge carry?

About 15,761 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 732R over CSX Trans Brock Bridge?

The structure is 203 ft (61.9 m) long with a longest span of 113 ft (34.4 m) and a deck 42 ft wide.

Who owns Md 732R over CSX Trans Brock Bridge?

It is owned by the State Highway Agency.