US Bridges

IH 20 Nfr over Brazos River Trib

Good

Parker County, Texas · 3.8 MI W of FM 113 · Structure no. 021840031401087

Built
1970
55 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
229
2021 count
Owner
State
State Highway Agency

About this bridge

IH 20 Nfr over Brazos River Trib is a concrete culvert carrying IH 20 Nfr over Brazos River Trib in Parker County, Texas. It was built in 1970, so it is 55 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 229 vehicles a day, roughly 33% of them trucks, projected to reach 250 by 2033. The structure is 27 ft (8.2 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 20 Nfr
CrossesBrazos River Trib
Location3.8 MI W of FM 113
RouteState Highway 20
StateTexas
Coordinates32.64294, -98.06044
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length27 ft (8.2 m)
Longest span7 ft (2.1 m)
Deck width50 ft (15.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic229 (2021)
Projected traffic250 by 2033
Trucks33%
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 IH 20 Nfr over Brazos River Trib built?

It was built in 1970, making it 55 years old in 2025.

What condition is IH 20 Nfr over Brazos River Trib 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 2024.

How much traffic does IH 20 Nfr over Brazos River Trib carry?

About 229 vehicles per day (2021 count), of which roughly 33% are trucks.

How long is IH 20 Nfr over Brazos River Trib?

The structure is 27 ft (8.2 m) long with a longest span of 7 ft (2.1 m) and a deck 50 ft wide.

Who owns IH 20 Nfr over Brazos River Trib?

It is owned by the State Highway Agency.