US Bridges

CO Line RD over US 75

Good

Grayson County, Texas · 1.6 MI S of FM 121 · Structure no. 010920004713187

Built
1968
57 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
4 main spans
Daily traffic
100
2010 count
Owner
State
State Highway Agency

About this bridge

CO Line RD over US 75 is a prestressed concrete stringer/multi-beam or girder carrying CO Line RD over US 75 in Grayson County, Texas. It was built in 1968, so it is 57 years old, older 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, projected to reach 750 by 2027. The structure is 280 ft (85.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCO Line RD
CrossesUS 75
Location1.6 MI S of FM 121
RouteCounty Highway 1
StateTexas
Coordinates33.40019, -96.58024
Functional classRural Major Collector

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length280 ft (85.3 m)
Longest span75 ft (22.9 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2010)
Projected traffic750 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was CO Line RD over US 75 built?

It was built in 1968, making it 57 years old in 2025.

What condition is CO Line RD over US 75 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 March 2023.

How much traffic does CO Line RD over US 75 carry?

About 100 vehicles per day (2010 count).

How long is CO Line RD over US 75?

The structure is 280 ft (85.3 m) long with a longest span of 75 ft (22.9 m) and a deck 28 ft wide.

Who owns CO Line RD over US 75?

It is owned by the State Highway Agency.