US Bridges

Alcoa Mine RD over CR 312

Good

Lee County, Texas · 0.4 MI N of CR 309 · Structure no. 141440AA0312001

Built
2005
20 years old
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
34 ft
1 main span
Daily traffic
100
2010 count
Owner
Private
Private (other than railroad)

About this bridge

Alcoa Mine RD over CR 312 is a steel culvert carrying Alcoa Mine RD over CR 312 in Lee County, Texas. It was built in 2005, so it is 20 years old, younger than the Texas average of 44.4 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 100 vehicles a day, roughly 90% of them trucks, projected to reach 110 by 2027. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAlcoa Mine RD
CrossesCR 312
Location0.4 MI N of CR 309
StateTexas
Coordinates30.42439, -97.18642
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
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2010)
Projected traffic110 by 2027
Trucks90%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerPrivate (other than railroad)
Maintained byPrivate (other than railroad)
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Alcoa Mine RD over CR 312 built?

It was built in 2005, making it 20 years old in 2025.

What condition is Alcoa Mine RD over CR 312 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 January 2024.

How much traffic does Alcoa Mine RD over CR 312 carry?

About 100 vehicles per day (2010 count), of which roughly 90% are trucks.

How long is Alcoa Mine RD over CR 312?

The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m).

Who owns Alcoa Mine RD over CR 312?

It is owned by the Private (other than railroad).