US Bridges

Md 91 over Beaver Run

Fair

Carroll County, Maryland · .21 Mile North of Md 879C · Structure no. 100000060060020

Built
1967
58 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
33 ft
Daily traffic
11,260
2009 count
Owner
State
State Highway Agency

About this bridge

Md 91 over Beaver Run is a concrete culvert carrying Md 91 over Beaver Run in Carroll County, Maryland. It was built in 1967, so it is 58 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 11,260 vehicles a day, roughly 8% of them trucks, projected to reach 11,840 by 2029. The structure is 33 ft (10.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMd 91
CrossesBeaver Run
Location.21 Mile North of Md 879C
RouteState Highway 91
Coordinates39.48698, -76.90047
Functional classUrban Other Principal 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length33 ft (10.2 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,260 (2009)
Projected traffic11,840 by 2029
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 91 over Beaver Run built?

It was built in 1967, making it 58 years old in 2025.

What condition is Md 91 over Beaver Run 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 March 2023.

How much traffic does Md 91 over Beaver Run carry?

About 11,260 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 91 over Beaver Run?

The structure is 33 ft (10.2 m) long with a longest span of 16 ft (4.9 m).

Who owns Md 91 over Beaver Run?

It is owned by the State Highway Agency.