US Bridges

Md 147 over Haystack Branch

Fair

Baltimore County, Maryland · 1.01 MI S of Mt Vista RD · Structure no. 100000030091010

Built
1915
110 years old
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
32 ft
1 main span
Daily traffic
5,752
2009 count
Owner
State
State Highway Agency

About this bridge

Md 147 over Haystack Branch is a concrete arch - deck carrying Md 147 over Haystack Branch in Baltimore County, Maryland. It was built in 1915, so it is 110 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 5,752 vehicles a day, roughly 8% of them trucks, projected to reach 7,024 by 2026. The structure is 32 ft (9.8 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

No coordinates are recorded for this structure.

CarriesMd 147
CrossesHaystack Branch
Location1.01 MI S of Mt Vista RD
RouteState Highway 147
CountyBaltimore County
StateMaryland
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,752 (2009)
Projected traffic7,024 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$73,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 147 over Haystack Branch built?

It was built in 1915, making it 110 years old in 2025.

What condition is Md 147 over Haystack 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 June 2023.

How much traffic does Md 147 over Haystack Branch carry?

About 5,752 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 147 over Haystack Branch?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 23 ft wide.

Who owns Md 147 over Haystack Branch?

It is owned by the State Highway Agency.