SH 78 over Lee Creek Tributary

Fair

Collin County, Texas · 1.90 MI N of US 380 · Structure no. 180430028002032

Built: 1966; 59 years old
Condition: Fair; inspected September 2023
Type: Culvert; Concrete
Length: 22 ft; 2 main spans
Daily traffic: 7,401; 2023 count
Owner: State; State Highway Agency

About this bridge

SH 78 over Lee Creek Tributary is a concrete culvert carrying SH 78 over Lee Creek Tributary in Collin County, Texas. It was built in 1966, so it is 59 years old, older 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 7,401 vehicles a day, roughly 13% of them trucks, projected to reach 9,120 by 2037. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSH 78

CrossesLee Creek Tributary

Location1.90 MI N of US 380

RouteState Highway 78

CountyCollin County

StateTexas

Coordinates33.18193, -96.37308

Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionSeptember 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourCountermeasures installed to correct a previously existing problem

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating44 US tons

Inventory rating26 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadHS 20

Structure length22 ft (6.7 m)

Longest span7 ft (2.1 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,401 (2023)

Projected traffic9,120 by 2037

Trucks13%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.2 mi (2 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—

NavigationNo navigation control on waterway

Frequently asked questions

When was SH 78 over Lee Creek Tributary built?

It was built in 1966, making it 59 years old in 2025.

What condition is SH 78 over Lee Creek Tributary 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 September 2023.

How much traffic does SH 78 over Lee Creek Tributary carry?

About 7,401 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SH 78 over Lee Creek Tributary?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m).

Who owns SH 78 over Lee Creek Tributary?

It is owned by the State Highway Agency.