US Bridges

Gilroy Road over Oregon Branch

Good

Baltimore County, Maryland · 0.28 MI E of Is 83 · Structure no. 200000B-0403030

Built
1966
59 years old
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
46 ft
Daily traffic
5,185
2024 count
Owner
County
County Highway Agency

About this bridge

Gilroy Road over Oregon Branch is a steel culvert carrying Gilroy Road over Oregon Branch in Baltimore 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 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 5,185 vehicles a day, roughly 5% of them trucks, projected to reach 6,327 by 2044. The structure is 46 ft (14.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGilroy Road
CrossesOregon Branch
Location0.28 MI E of Is 83
RouteCounty Highway 430
Coordinates39.48764, -76.66082
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadUnknown
Structure length46 ft (14.1 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,185 (2024)
Projected traffic6,327 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Gilroy Road over Oregon Branch built?

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

What condition is Gilroy Road over Oregon Branch 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 January 2024.

How much traffic does Gilroy Road over Oregon Branch carry?

About 5,185 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Gilroy Road over Oregon Branch?

The structure is 46 ft (14.1 m) long with a longest span of 13 ft (4 m).

Who owns Gilroy Road over Oregon Branch?

It is owned by the County Highway Agency.