US Bridges

IH 45 Nbfr over Post Oak Creek

Fair

Navarro County, Texas · 0.25 MI N of SH 31 · Structure no. 181750009206353

Built
2000
25 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
118 ft
3 main spans
Daily traffic
220
2023 count
Owner
State
State Highway Agency

About this bridge

IH 45 Nbfr over Post Oak Creek is a prestressed concrete stringer/multi-beam or girder carrying IH 45 Nbfr over Post Oak Creek in Navarro County, Texas. It was built in 2000, so it is 25 years old, younger 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 220 vehicles a day, roughly 30% of them trucks, projected to reach 4,750 by 2035. The structure is 118 ft (36 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 45 Nbfr
CrossesPost Oak Creek
Location0.25 MI N of SH 31
CountyNavarro County
StateTexas
Coordinates32.10165, -96.44138
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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, cast-in-place
Main spans3
Design loadHS 20
Structure length118 ft (36 m)
Longest span39 ft (11.9 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2023)
Projected traffic4,750 by 2035
Trucks30%
Lanes on structure2
Traffic directionOne-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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$9,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 45 Nbfr over Post Oak Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is IH 45 Nbfr over Post Oak 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 November 2023.

How much traffic does IH 45 Nbfr over Post Oak Creek carry?

About 220 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is IH 45 Nbfr over Post Oak Creek?

The structure is 118 ft (36 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.

Who owns IH 45 Nbfr over Post Oak Creek?

It is owned by the State Highway Agency.