US Bridges

Catherine Avenue over Magothy Branch

Fair

Anne Arundel County, Maryland · 0.5 Mi. South of Md 100 · Structure no. 200000AA4028020

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
28 ft
Daily traffic
9,124
2018 count
Owner
County
County Highway Agency

About this bridge

Catherine Avenue over Magothy Branch is a concrete culvert carrying Catherine Avenue over Magothy Branch in Anne Arundel County, Maryland. It was built in 1970, so it is 55 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 9,124 vehicles a day, roughly 1% of them trucks, projected to reach 10,600 by 2040. The structure is 28 ft (8.5 m) long.

Location

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CarriesCatherine Avenue
CrossesMagothy Branch
Location0.5 Mi. South of Md 100
RouteCounty Highway 0
CountyAnne Arundel County
StateMaryland
Coordinates39.115, -76.54986
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.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,124 (2018)
Projected traffic10,600 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Catherine Avenue over Magothy Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Catherine Avenue over Magothy Branch 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 2023.

How much traffic does Catherine Avenue over Magothy Branch carry?

About 9,124 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Catherine Avenue over Magothy Branch?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m).

Who owns Catherine Avenue over Magothy Branch?

It is owned by the County Highway Agency.