US Bridges

FM 1777 over Stewarts Branch

Fair

Collin County, Texas · 1.70 MI S of FM 6 · Structure no. 180430101404009

Built
1953
72 years old, rebuilt 2011
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
35 ft
4 main spans
Daily traffic
864
2014 count
Owner
State
State Highway Agency

About this bridge

FM 1777 over Stewarts Branch is a concrete culvert carrying FM 1777 over Stewarts Branch in Collin County, Texas. It was built in 1953 and reconstructed in 2011, so it is 72 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 864 vehicles a day, roughly 4% of them trucks, projected to reach 4,169 by 2040. The structure is 35 ft (10.7 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 1777
CrossesStewarts Branch
Location1.70 MI S of FM 6
RouteState Highway 1777
CountyCollin County
StateTexas
Coordinates33.03656, -96.30997
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length35 ft (10.7 m)
Longest span8 ft (2.4 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic864 (2014)
Projected traffic4,169 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FM 1777 over Stewarts Branch built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2011.

What condition is FM 1777 over Stewarts Branch 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 FM 1777 over Stewarts Branch carry?

About 864 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is FM 1777 over Stewarts Branch?

The structure is 35 ft (10.7 m) long with a longest span of 8 ft (2.4 m) and a deck 34 ft wide.

Who owns FM 1777 over Stewarts Branch?

It is owned by the State Highway Agency.