US Bridges

Knorpp RD over Mcclellan Creek

Good

Gray County, Texas · 0.9 MI N of IH 40 · Structure no. 040910AA0279001

Built
2003
22 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
50
2010 count
Owner
County
County Highway Agency

About this bridge

Knorpp RD over Mcclellan Creek is a concrete culvert carrying Knorpp RD over Mcclellan Creek in Gray County, Texas. It was built in 2003, so it is 22 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 50 vehicles a day, projected to reach 70 by 2027. The structure is 29 ft (8.8 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKnorpp RD
CrossesMcclellan Creek
Location0.9 MI N of IH 40
RouteCounty Highway 0
StateTexas
Coordinates35.19928, -101.0302
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2010)
Projected traffic70 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Knorpp RD over Mcclellan Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Knorpp RD over Mcclellan Creek 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 October 2024.

How much traffic does Knorpp RD over Mcclellan Creek carry?

About 50 vehicles per day (2010 count).

How long is Knorpp RD over Mcclellan Creek?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m) and a deck 30 ft wide.

Who owns Knorpp RD over Mcclellan Creek?

It is owned by the County Highway Agency.