US Bridges

Forrest Hills Dr. over Three Mile Branch

Fair

Montgomery County, Alabama · 0.13 MI S of Atlanta HWY · Structure no. 004321

Built
1952
73 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
42 ft
4 main spans
Daily traffic
1,200
1992 count
Owner
City
City or Municipal Highway Agency

About this bridge

Forrest Hills Dr. over Three Mile Branch is a concrete culvert carrying Forrest Hills Dr. over Three Mile Branch in Montgomery County, Alabama. It was built in 1952, so it is 73 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 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 1,200 vehicles a day, roughly 1% of them trucks, projected to reach 2,040 by 2044. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesForrest Hills Dr.
CrossesThree Mile Branch
Location0.13 MI S of Atlanta HWY
RouteCity Street 0
CountyMontgomery County
StateAlabama
Coordinates32.3831, -86.2592
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
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 alignment7: Better than present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (1992)
Projected traffic2,040 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$646,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Forrest Hills Dr. over Three Mile Branch built?

It was built in 1952, making it 73 years old in 2025.

What condition is Forrest Hills Dr. over Three Mile 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 2024.

How much traffic does Forrest Hills Dr. over Three Mile Branch carry?

About 1,200 vehicles per day (1992 count), of which roughly 1% are trucks.

How long is Forrest Hills Dr. over Three Mile Branch?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m).

Who owns Forrest Hills Dr. over Three Mile Branch?

It is owned by the City or Municipal Highway Agency.