US Bridges

IH 20 Nfr over Big Grindstone Creek

Fair

Parker County, Texas · 0.8 MI S of FM-1189 · Structure no. 021840031401005

Built
1933
92 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
206 ft
2 main spans
Daily traffic
443
2024 count
Owner
State
State Highway Agency

About this bridge

IH 20 Nfr over Big Grindstone Creek is a concrete tee beam carrying IH 20 Nfr over Big Grindstone Creek in Parker County, Texas. It was built in 1933, so it is 92 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 443 vehicles a day, roughly 3% of them trucks, projected to reach 920 by 2033. The structure is 206 ft (62.8 m) long and 27 ft wide.

CarriesIH 20 Nfr
CrossesBig Grindstone Creek
Location0.8 MI S of FM-1189
RouteState Highway 20
StateTexas
Coordinates32.69724, -97.97306
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadUnknown
Structure length206 ft (62.8 m)
Longest span46 ft (14 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic443 (2024)
Projected traffic920 by 2033
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$663,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 20 Nfr over Big Grindstone Creek built?

It was built in 1933, making it 92 years old in 2025.

What condition is IH 20 Nfr over Big Grindstone Creek 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 2024.

How much traffic does IH 20 Nfr over Big Grindstone Creek carry?

About 443 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is IH 20 Nfr over Big Grindstone Creek?

The structure is 206 ft (62.8 m) long with a longest span of 46 ft (14 m) and a deck 27 ft wide.

Who owns IH 20 Nfr over Big Grindstone Creek?

It is owned by the State Highway Agency.