US Bridges

Hoffman Mill Road over Tributary East of Branch

Good

Carroll County, Maryland · .91 MI W - Houcksville RD · Structure no. 200000CL0376020

Built
1974
51 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
750
2021 count
Owner
County
County Highway Agency

About this bridge

Hoffman Mill Road over Tributary East of Branch is a concrete culvert carrying Hoffman Mill Road over Tributary East of Branch in Carroll County, Maryland. It was built in 1974, so it is 51 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 750 vehicles a day, roughly 8% of them trucks, projected to reach 1,229 by 2041. The structure is 28 ft (8.5 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesHoffman Mill Road
CrossesTributary East of Branch
Location.91 MI W - Houcksville RD
RouteCounty Highway 447
CountyCarroll County
StateMaryland
Coordinates39.59033, -76.87907
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating51 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2021)
Projected traffic1,229 by 2041
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

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 Hoffman Mill Road over Tributary East of Branch built?

It was built in 1974, making it 51 years old in 2025.

What condition is Hoffman Mill Road over Tributary East of 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 August 2023.

How much traffic does Hoffman Mill Road over Tributary East of Branch carry?

About 750 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Hoffman Mill Road over Tributary East of Branch?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m) and a deck 26 ft wide.

Who owns Hoffman Mill Road over Tributary East of Branch?

It is owned by the County Highway Agency.