US Bridges

Md 30 over Trib to East Branch

Good

Carroll County, Maryland · 1.21 M N of Md 482 · Structure no. 100000060070010

Built
2007
18 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
123 ft
1 main span
Daily traffic
9,450
2009 count
Owner
State
State Highway Agency

About this bridge

Md 30 over Trib to East Branch is a prestressed concrete stringer/multi-beam or girder carrying Md 30 over Trib to East Branch in Carroll County, Maryland. It was built in 2007, so it is 18 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 9,450 vehicles a day, roughly 8% of them trucks, projected to reach 21,000 by 2020. The structure is 123 ft (37.5 m) long and 48 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesMd 30
CrossesTrib to East Branch
Location1.21 M N of Md 482
RouteState Highway 30
Coordinates39.62641, -76.86814
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length123 ft (37.5 m)
Longest span120 ft (36.6 m)
Deck width48 ft (14.6 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,450 (2009)
Projected traffic21,000 by 2020
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

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 30 over Trib to East Branch built?

It was built in 2007, making it 18 years old in 2025.

What condition is Md 30 over Trib to East 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 April 2023.

How much traffic does Md 30 over Trib to East Branch carry?

About 9,450 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 30 over Trib to East Branch?

The structure is 123 ft (37.5 m) long with a longest span of 120 ft (36.6 m) and a deck 48 ft wide.

Who owns Md 30 over Trib to East Branch?

It is owned by the State Highway Agency.