US Bridges

Mastin Lake RD over Pinhook Creek

Fair

Madison County, Alabama · By Mastin Lake School · Structure no. 009799

Built
1968
57 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Concrete
Length
81 ft
2 main spans
Daily traffic
16,700
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mastin Lake RD over Pinhook Creek is a concrete tee beam carrying Mastin Lake RD over Pinhook Creek in Madison County, Alabama. It was built in 1968, so it is 57 years old, older than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 16,700 vehicles a day, roughly 1% of them trucks, projected to reach 24,100 by 2044. The structure is 81 ft (24.7 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMastin Lake RD
CrossesPinhook Creek
LocationBy Mastin Lake School
RouteCity Street 0
StateAlabama
Coordinates34.77167, -86.59167
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length81 ft (24.7 m)
Longest span40 ft (12.3 m)
Deck width61 ft (18.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,700 (2024)
Projected traffic24,100 by 2044
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mastin Lake RD over Pinhook Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Mastin Lake RD over Pinhook 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 December 2024.

How much traffic does Mastin Lake RD over Pinhook Creek carry?

About 16,700 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Mastin Lake RD over Pinhook Creek?

The structure is 81 ft (24.7 m) long with a longest span of 40 ft (12.3 m) and a deck 61 ft wide.

Who owns Mastin Lake RD over Pinhook Creek?

It is owned by the City or Municipal Highway Agency.