US Bridges

Rockhill Pkwy EB over Parvin Branch

Good

Collin County, Texas · 0.7 MI W of Dntw · Structure no. 180430J00450002

Built
2019
6 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
400 ft
5 main spans
Daily traffic
5,994
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rockhill Pkwy EB over Parvin Branch is a prestressed concrete stringer/multi-beam or girder carrying Rockhill Pkwy EB over Parvin Branch in Collin County, Texas. It was built in 2019, so it is 6 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 5,994 vehicles a day, projected to reach 6,593 by 2041. The structure is 400 ft (121.9 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRockhill Pkwy EB
CrossesParvin Branch
Location0.7 MI W of Dntw
RouteCity Street 0
CountyCollin County
StateTexas
Coordinates33.21084, -96.83124
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be 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

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans5
Design loadHL 93
Structure length400 ft (121.9 m)
Longest span80 ft (24.4 m)
Deck width52 ft (15.7 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,994 (2021)
Projected traffic6,593 by 2041
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Rockhill Pkwy EB over Parvin Branch built?

It was built in 2019, making it 6 years old in 2025.

What condition is Rockhill Pkwy EB over Parvin Branch 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 May 2023.

How much traffic does Rockhill Pkwy EB over Parvin Branch carry?

About 5,994 vehicles per day (2021 count).

How long is Rockhill Pkwy EB over Parvin Branch?

The structure is 400 ft (121.9 m) long with a longest span of 80 ft (24.4 m) and a deck 52 ft wide.

Who owns Rockhill Pkwy EB over Parvin Branch?

It is owned by the City or Municipal Highway Agency.