US Bridges

Knob Hill RD over Draw

Fair

Grayson County, Texas · 3.45 MI E of SH 5 · Structure no. 010920AA0220002

Built
1996
29 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
168
2023 count
Owner
County
County Highway Agency

About this bridge

Knob Hill RD over Draw is a steel stringer/multi-beam or girder carrying Knob Hill RD over Draw in Grayson County, Texas. It was built in 1996, so it is 29 years old, younger than the Texas average of 44.4 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 168 vehicles a day, projected to reach 110 by 2030. The structure is 83 ft (25.3 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKnob Hill RD
CrossesDraw
Location3.45 MI E of SH 5
RouteCounty Highway 0
CountyGrayson County
StateTexas
Coordinates33.47733, -96.54996
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadUnknown
Structure length83 ft (25.3 m)
Longest span44 ft (13.4 m)
Deck width24 ft (7.2 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168 (2023)
Projected traffic110 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$55,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Knob Hill RD over Draw built?

It was built in 1996, making it 29 years old in 2025.

What condition is Knob Hill RD over Draw 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 April 2024.

How much traffic does Knob Hill RD over Draw carry?

About 168 vehicles per day (2023 count).

How long is Knob Hill RD over Draw?

The structure is 83 ft (25.3 m) long with a longest span of 44 ft (13.4 m) and a deck 24 ft wide.

Who owns Knob Hill RD over Draw?

It is owned by the County Highway Agency.