US Bridges

SH 78 EB over Maxwell Creek

Good

Collin County, Texas · 1.30 MI SW of FM 544 · Structure no. 180430028102046

Built
1999
26 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
255 ft
3 main spans
Daily traffic
14,917
2023 count
Owner
State
State Highway Agency

About this bridge

SH 78 EB over Maxwell Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 78 EB over Maxwell Creek in Collin 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 14,917 vehicles a day, roughly 7% of them trucks, projected to reach 18,617 by 2040. The structure is 255 ft (77.7 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 78 EB
CrossesMaxwell Creek
Location1.30 MI SW of FM 544
RouteState Highway 78
StateTexas
Coordinates32.99564, -96.5652
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
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 adequacy9: 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 spans3
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span85 ft (25.9 m)
Deck width56 ft (17.2 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,917 (2023)
Projected traffic18,617 by 2040
Trucks7%
Lanes on structure3
Traffic directionOne-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 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 SH 78 EB over Maxwell Creek built?

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

What condition is SH 78 EB over Maxwell 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 2023.

How much traffic does SH 78 EB over Maxwell Creek carry?

About 14,917 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SH 78 EB over Maxwell Creek?

The structure is 255 ft (77.7 m) long with a longest span of 85 ft (25.9 m) and a deck 56 ft wide.

Who owns SH 78 EB over Maxwell Creek?

It is owned by the State Highway Agency.