US Bridges

FM 1827 over Big Branch

Good

Collin County, Texas · 3.10 MI NE of US 380 · Structure no. 180430174601001

Built
1953
72 years old, rebuilt 2019
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
4,397
2023 count
Owner
State
State Highway Agency

About this bridge

FM 1827 over Big Branch is a concrete culvert carrying FM 1827 over Big Branch in Collin County, Texas. It was built in 1953 and reconstructed in 2019, 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 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 4,397 vehicles a day, roughly 6% of them trucks, projected to reach 4,580 by 2037. The structure is 22 ft (6.7 m) long and 42 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM 1827
CrossesBig Branch
Location3.10 MI NE of US 380
RouteState Highway 1827
CountyCollin County
StateTexas
Coordinates33.22836, -96.54527
Functional classRural Major Collector

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 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 geometry4: Meets minimum tolerable limits to be left in place as is
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 spans2
Design loadOther
Structure length22 ft (6.7 m)
Longest span7 ft (2.1 m)
Deck width42 ft (12.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,397 (2023)
Projected traffic4,580 by 2037
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 1827 over Big Branch built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2019.

What condition is FM 1827 over Big 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 September 2023.

How much traffic does FM 1827 over Big Branch carry?

About 4,397 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is FM 1827 over Big Branch?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m) and a deck 42 ft wide.

Who owns FM 1827 over Big Branch?

It is owned by the State Highway Agency.