US Bridges

Flintstone Creek R over Flintstone Creek

Fair

Allegany County, Maryland · 0.30 MI S of Pa Line · Structure no. 200000A-0104010

Built
1930
95 years old, rebuilt 1997
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
141
2019 count
Owner
County
County Highway Agency

About this bridge

Flintstone Creek R over Flintstone Creek is a steel stringer/multi-beam or girder carrying Flintstone Creek R over Flintstone Creek in Allegany County, Maryland. It was built in 1930 and reconstructed in 1997, so it is 95 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 141 vehicles a day, roughly 5% of them trucks, projected to reach 176 by 2041. The structure is 26 ft (7.9 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFlintstone Creek R
CrossesFlintstone Creek
Location0.30 MI S of Pa Line
RouteCounty Highway 504
Coordinates39.71978, -78.58976
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating79.5 US tons
Inventory rating47.5 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic141 (2019)
Projected traffic176 by 2041
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$58,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Flintstone Creek R over Flintstone Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1997.

What condition is Flintstone Creek R over Flintstone Creek 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 October 2023.

How much traffic does Flintstone Creek R over Flintstone Creek carry?

About 141 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Flintstone Creek R over Flintstone Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 20 ft wide.

Who owns Flintstone Creek R over Flintstone Creek?

It is owned by the County Highway Agency.