US Bridges

Lp 12 SB Ramp over Lp 12 SB Ext

Good

Dallas County, Texas · 0.65 MI South of SH 183 · Structure no. 180570058102408

Built
2024
1 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
726 ft
1 main span
Daily traffic
8,900
2024 count
Owner
State
State Highway Agency

About this bridge

Lp 12 SB Ramp over Lp 12 SB Ext is a prestressed concrete stringer/multi-beam or girder carrying Lp 12 SB Ramp over Lp 12 SB Ext in Dallas County, Texas. It was built in 2024, so it is 1 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 8,900 vehicles a day, roughly 11% of them trucks, projected to reach 18,900 by 2044. The structure is 726 ft (221.3 m) long and 28 ft wide.

CarriesLp 12 SB Ramp
CrossesLp 12 SB Ext
Location0.65 MI South of SH 183
RouteState Highway 12
StateTexas
Coordinates32.82648, -96.91902
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+5 approach)
Design loadHL 93
Structure length726 ft (221.3 m)
Longest span139 ft (42.4 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2024)
Projected traffic18,900 by 2044
Trucks11%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 12 SB Ramp over Lp 12 SB Ext built?

It was built in 2024, making it 1 years old in 2025.

What condition is Lp 12 SB Ramp over Lp 12 SB Ext 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 May 2024.

How much traffic does Lp 12 SB Ramp over Lp 12 SB Ext carry?

About 8,900 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Lp 12 SB Ramp over Lp 12 SB Ext?

The structure is 726 ft (221.3 m) long with a longest span of 139 ft (42.4 m) and a deck 28 ft wide.

Who owns Lp 12 SB Ramp over Lp 12 SB Ext?

It is owned by the State Highway Agency.