US Bridges

CR-45 over Mckay Branch

Fair

Marion County, Alabama · W Side AL-171 on Row · Structure no. 019071

Built
2003
22 years old
Condition
Fair
inspected May 2024
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
500
2017 count
Owner
State
State Highway Agency

About this bridge

CR-45 over Mckay Branch is a concrete channel beam carrying CR-45 over Mckay Branch in Marion County, Alabama. It was built in 2003, so it is 22 years old, younger 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 650 by 2038. The structure is 34 ft (10.4 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR-45
CrossesMckay Branch
LocationW Side AL-171 on Row
RouteCounty Highway 45
CountyMarion County
StateAlabama
Coordinates34.00075, -87.93186
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 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 rating87.3 US tons
Inventory rating54.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2017)
Projected traffic650 by 2038
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$348,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was CR-45 over Mckay Branch built?

It was built in 2003, making it 22 years old in 2025.

What condition is CR-45 over Mckay 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 May 2024.

How much traffic does CR-45 over Mckay Branch carry?

About 500 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is CR-45 over Mckay Branch?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 27 ft wide.

Who owns CR-45 over Mckay Branch?

It is owned by the State Highway Agency.