US Bridges

Mars RD over IH 45

Good

Dallas County, Texas · 7.10 MI S of IH 20 · Structure no. 180570009202337

Built
1999
26 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
6 main spans
Daily traffic
940
2019 count
Owner
State
State Highway Agency

About this bridge

Mars RD over IH 45 is a prestressed concrete stringer/multi-beam or girder carrying Mars RD over IH 45 in Dallas County, Texas. It was built in 1999, so it is 26 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 940 vehicles a day, projected to reach 2,492 by 2035. The structure is 420 ft (128 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMars RD
CrossesIH 45
Location7.10 MI S of IH 20
RouteCity Street 0
StateTexas
Coordinates32.5781, -96.67342
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length420 ft (128 m)
Longest span85 ft (25.9 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic940 (2019)
Projected traffic2,492 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mars RD over IH 45 built?

It was built in 1999, making it 26 years old in 2025.

What condition is Mars RD over IH 45 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 February 2024.

How much traffic does Mars RD over IH 45 carry?

About 940 vehicles per day (2019 count).

How long is Mars RD over IH 45?

The structure is 420 ft (128 m) long with a longest span of 85 ft (25.9 m) and a deck 46 ft wide.

Who owns Mars RD over IH 45?

It is owned by the State Highway Agency.